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Boolean Algebra Ontology

Algebra Ontologies
Authors: MArk Anthony Higgins - Sky Recursive Ai
© Mark Anthony Higgins 11 October 2025
Revised Date: 13 September 2026
Audio Overview
======================================================================
KIRETH SEMANTIC RESEARCH ARCHIVE
FLOW ALGEBRA — BOOLEAN ALGEBRA ONTOLOGY
======================================================================

PAGE:
https://kirethresearch.org/booksai-core/ontologies/mathematical-ontologies/algebra-ontologies/boolean-algebra-ontology.html

FLOW:
BooleanAlgebraOntology

VERSION:
1.0

LANGUAGE:
en-GB

AUTHORS:
Mark Anthony Higgins — Sky Recursive AI

PURPOSE:
To provide a machine-readable, recursively executable semantic and
reasoning specification for Boolean algebra, including Boolean values,
operations, laws, identities, expressions, truth tables, normal forms,
duality, simplification, switching interpretations, set-theoretic
interpretations and logical equivalence.

AI INTERPRETATION NOTE:
Execute the following specification as formal semantic and reasoning
rules. Preserve Boolean domains, operator meanings, equivalence,
duality and canonical-form invariants.

======================================================================
START FLOW
======================================================================

FLOW BooleanAlgebraOntology {

----------------------------------------------------------------------
1. DOMAIN DECLARATION
----------------------------------------------------------------------

DOMAIN := Boolean_Algebra

PARENT_DOMAIN := Algebra

SUPER_DOMAINS := {
    Mathematics,
    Mathematical_Ontologies,
    Algebra_Ontologies,
    Abstract_Algebra
}

DOMAIN_INTENT := {
    represent_boolean_values,
    represent_boolean_variables,
    represent_boolean_operations,
    represent_boolean_expressions,
    represent_boolean_functions,
    represent_truth_tables,
    represent_boolean_identies,
    represent_boolean_equivalence,
    represent_duality,
    represent_normal_forms,
    represent_minterms,
    represent_maxterms,
    represent_simplification,
    represent_set_interpretations,
    represent_logic_interpretations,
    support_symbolic_boolean_reasoning,
    support_recursive_equivalence_validation
}

----------------------------------------------------------------------
2. PRIMITIVE TYPES
----------------------------------------------------------------------

TYPE BooleanValue
TYPE BooleanVariable
TYPE BooleanConstant
TYPE BooleanExpression
TYPE BooleanFunction
TYPE UnaryBooleanOperation
TYPE BinaryBooleanOperation
TYPE TruthTable
TYPE Minterm
TYPE Maxterm
TYPE NormalForm
TYPE SumOfProducts <: NormalForm
TYPE ProductOfSums <: NormalForm
TYPE CanonicalSOP <: SumOfProducts
TYPE CanonicalPOS <: ProductOfSums
TYPE Statement
TYPE Equivalence
TYPE Derivation
TYPE ProofStep
TYPE ValidationResult

BOOLEAN_DOMAIN := {0,1}

INTERPRETATION:
    0 ~= false
    1 ~= true

----------------------------------------------------------------------
3. CORE OPERATIONS
----------------------------------------------------------------------

OPERATOR NOT(x) := ¬x
OPERATOR AND(x,y) := x ∧ y
OPERATOR OR(x,y) := x ∨ y
OPERATOR XOR(x,y) := x ⊕ y
OPERATOR NAND(x,y) := ¬(x ∧ y)
OPERATOR NOR(x,y) := ¬(x ∨ y)
OPERATOR IMPLIES(x,y) := ¬x ∨ y
OPERATOR EQUIV(x,y) := (x ∧ y) ∨ (¬x ∧ ¬y)

RULE OP_01:
    NOT(0)=1
    NOT(1)=0

RULE OP_02:
    AND(x,y)=1 iff x=1 and y=1

RULE OP_03:
    OR(x,y)=1 iff x=1 or y=1

RULE OP_04:
    XOR(x,y)=1 iff x!=y

----------------------------------------------------------------------
4. BOOLEAN ALGEBRA STRUCTURE
----------------------------------------------------------------------

ENTITY BooleanAlgebra B {
    carrier_set: B
    operations: {∨, ∧, ¬}
    constants: {0,1}
}

IS_BOOLEAN_ALGEBRA(B) iff
    satisfies:
        commutativity,
        associativity,
        distributivity,
        identity_laws,
        complement_laws

AXIOM BA_01:
    x ∨ y = y ∨ x

AXIOM BA_02:
    x ∧ y = y ∧ x

AXIOM BA_03:
    x ∨ (y ∨ z) = (x ∨ y) ∨ z

AXIOM BA_04:
    x ∧ (y ∧ z) = (x ∧ y) ∧ z

AXIOM BA_05:
    x ∨ (y ∧ z) = (x ∨ y) ∧ (x ∨ z)

AXIOM BA_06:
    x ∧ (y ∨ z) = (x ∧ y) ∨ (x ∧ z)

AXIOM BA_07:
    x ∨ 0 = x

AXIOM BA_08:
    x ∧ 1 = x

AXIOM BA_09:
    x ∨ ¬x = 1

AXIOM BA_10:
    x ∧ ¬x = 0

----------------------------------------------------------------------
5. DERIVED LAWS
----------------------------------------------------------------------

LAW IDENTITY_OR:
    x ∨ 0 = x

LAW IDENTITY_AND:
    x ∧ 1 = x

LAW DOMINATION_OR:
    x ∨ 1 = 1

LAW DOMINATION_AND:
    x ∧ 0 = 0

LAW IDEMPOTENT_OR:
    x ∨ x = x

LAW IDEMPOTENT_AND:
    x ∧ x = x

LAW DOUBLE_NEGATION:
    ¬(¬x)=x

LAW COMPLEMENT_OR:
    x ∨ ¬x = 1

LAW COMPLEMENT_AND:
    x ∧ ¬x = 0

LAW ABSORPTION_01:
    x ∨ (x ∧ y) = x

LAW ABSORPTION_02:
    x ∧ (x ∨ y) = x

----------------------------------------------------------------------
6. DE MORGAN'S LAWS
----------------------------------------------------------------------

LAW DEMORGAN_01:
    ¬(x ∧ y) = ¬x ∨ ¬y

LAW DEMORGAN_02:
    ¬(x ∨ y) = ¬x ∧ ¬y

RULE DEMORGAN_03:
    complement distributes across compound expressions by
    swapping AND and OR and complementing operands recursively.

----------------------------------------------------------------------
7. CONSENSUS THEOREM
----------------------------------------------------------------------

LAW CONSENSUS_01:
    xy ∨ ¬x z ∨ yz
    =
    xy ∨ ¬x z

DUAL_CONSENSUS:
    (x∨y)(¬x∨z)(y∨z)
    =
    (x∨y)(¬x∨z)

----------------------------------------------------------------------
8. BOOLEAN EXPRESSIONS
----------------------------------------------------------------------

ENTITY BooleanExpression E {
    variables: BooleanVariable*
    constants: BooleanConstant*
    operators: BooleanOperation*
}

WELL_FORMED(E) iff
    all operators have correct arity
    AND all leaves are variables or constants

RULE EXPR_01:
    every well-formed Boolean expression defines a Boolean function.

----------------------------------------------------------------------
9. BOOLEAN FUNCTIONS
----------------------------------------------------------------------

ENTITY BooleanFunction f {
    arity: n
    mapping:
        {0,1}^n -> {0,1}
}

RULE BF_01:
    n-variable Boolean function has exactly 2^n possible input rows.

RULE BF_02:
    number of distinct n-variable Boolean functions
    = 2^(2^n)

----------------------------------------------------------------------
10. TRUTH TABLES
----------------------------------------------------------------------

ENTITY TruthTable T {
    variables: [x1,...,xn]
    rows: 2^n
    outputs: BooleanValue*
}

PROCEDURE BUILD_TRUTH_TABLE(E):

    identify variables
    enumerate all binary assignments
    evaluate E for each assignment
    record output

    RETURN TruthTable

RULE TT_01:
    two expressions are equivalent iff their truth tables are identical.

----------------------------------------------------------------------
11. BOOLEAN EQUIVALENCE
----------------------------------------------------------------------

BOOLEAN_EQUIVALENT(A,B) iff
    forall assignments alpha:
        EVAL(A,alpha)=EVAL(B,alpha)

NOTATION:
    A ≡ B

PROCEDURE VALIDATE_EQUIVALENCE(A,B):

    attempt symbolic simplification

    if same normal form:
        return VALID

    otherwise compare truth tables

    if all rows equal:
        return VALID

    else:
        return INVALID with counterexample assignment

----------------------------------------------------------------------
12. DUALITY
----------------------------------------------------------------------

DUAL_TRANSFORM(expression):

    exchange:
        ∨ <-> ∧
        0 <-> 1

    preserve:
        variables
        complements

PRINCIPLE_OF_DUALITY:
    if Boolean identity is valid,
    its dual identity is also valid.

EXAMPLE:
    x ∨ 0 = x
    dual:
    x ∧ 1 = x

----------------------------------------------------------------------
13. LITERAL
----------------------------------------------------------------------

ENTITY Literal {
    variable: x
    polarity: positive | negative
}

POSITIVE_LITERAL(x) := x
NEGATIVE_LITERAL(x) := ¬x

----------------------------------------------------------------------
14. MINTERMS
----------------------------------------------------------------------

ENTITY Minterm {
    literals:
        exactly one literal for every variable
    connective:
        AND
}

RULE MINTERM_01:
    a minterm evaluates to 1 on exactly one assignment.

FUNCTION MINTERM(index,variables):
    encode assignment bits
    use positive literal for 1
    use complemented literal for 0

----------------------------------------------------------------------
15. MAXTERMS
----------------------------------------------------------------------

ENTITY Maxterm {
    literals:
        exactly one literal for every variable
    connective:
        OR
}

RULE MAXTERM_01:
    a maxterm evaluates to 0 on exactly one assignment.

FUNCTION MAXTERM(index,variables):
    encode assignment bits
    use complemented literal for 1
    use positive literal for 0

----------------------------------------------------------------------
16. SUM OF PRODUCTS
----------------------------------------------------------------------

ENTITY SumOfProducts {
    structure:
        OR of product terms
}

SOP(E):
-
    expression represented as:
        P1 ∨ P2 ∨ ... ∨ Pk

where each Pi is AND of literals.

----------------------------------------------------------------------
17. PRODUCT OF SUMS
----------------------------------------------------------------------

ENTITY ProductOfSums {
    structure:
        AND of sum terms
}

POS(E):
-
    expression represented as:
        S1 ∧ S2 ∧ ... ∧ Sk

where each Si is OR of literals.

----------------------------------------------------------------------
18. CANONICAL SOP
----------------------------------------------------------------------

CANONICAL_SOP(f):

    identify truth-table rows where f=1

    generate corresponding minterm for each row

    OR all minterms

    RETURN canonical_sum_of_products

NOTATION:
    f = Σm(indices)

----------------------------------------------------------------------
19. CANONICAL POS
----------------------------------------------------------------------

CANONICAL_POS(f):

    identify truth-table rows where f=0

    generate corresponding maxterm for each row

    AND all maxterms

    RETURN canonical_product_of_sums

NOTATION:
    f = ΠM(indices)

----------------------------------------------------------------------
20. COMPLEMENTS
----------------------------------------------------------------------

RULE COMP_01:
    ¬0=1

RULE COMP_02:
    ¬1=0

RULE COMP_03:
    ¬¬x=x

RULE COMP_04:
    complement of SOP may be transformed to POS using De Morgan.

RULE COMP_05:
    complement of POS may be transformed to SOP using De Morgan.

----------------------------------------------------------------------
21. SIMPLIFICATION ENGINE
----------------------------------------------------------------------

PROCEDURE SIMPLIFY_BOOLEAN(E):

    repeat until stable:

        remove_double_negations

        apply_identity_laws

        apply_domination_laws

        apply_idempotent_laws

        apply_complement_laws

        apply_absorption_laws

        apply_distributive_laws_when_complexity_reduces

        apply_De_Morgan_when_useful

        apply_consensus_rule

        remove_duplicate_terms

    validate equivalence

    RETURN simplified_expression

----------------------------------------------------------------------
22. COMPLEXITY MODEL
----------------------------------------------------------------------

FUNCTION COMPLEXITY(E):

    literals := count_literals(E)
    operators := count_operators(E)
    nesting := max_depth(E)

    return:
        literals
        + operators
        + nesting

RULE COMPLEXITY_01:
    simplification SHOULD reduce complexity while preserving equivalence.

----------------------------------------------------------------------
23. DISTRIBUTIVITY
----------------------------------------------------------------------

LAW DIST_01:
    x ∧ (y ∨ z)
    =
    (x ∧ y) ∨ (x ∧ z)

LAW DIST_02:
    x ∨ (y ∧ z)
    =
    (x ∨ y) ∧ (x ∨ z)

RULE DIST_03:
    Boolean algebra is distributive in both directions.

----------------------------------------------------------------------
24. ABSORPTION
----------------------------------------------------------------------

LAW ABS_01:
    x ∨ xy = x

LAW ABS_02:
    x(x∨y)=x

LAW ABS_03:
    x ∨ ¬x y = x ∨ y

LAW ABS_04:
    x(¬x∨y)=xy

----------------------------------------------------------------------
25. REDUNDANCY
----------------------------------------------------------------------

RULE REDUNDANCY_01:
    duplicate terms may be removed:
        x∨x=x

RULE REDUNDANCY_02:
    duplicate factors may be removed:
        xx=x

RULE REDUNDANCY_03:
    absorbed terms may be eliminated.

----------------------------------------------------------------------
26. XOR IDENTITIES
----------------------------------------------------------------------

XOR(x,y) :=
    x¬y ∨ ¬x y

RULE XOR_01:
    x⊕0=x

RULE XOR_02:
    x⊕1=¬x

RULE XOR_03:
    x⊕x=0

RULE XOR_04:
    x⊕¬x=1

RULE XOR_05:
    x⊕y=y⊕x

RULE XOR_06:
    (x⊕y)⊕z=x⊕(y⊕z)

----------------------------------------------------------------------
27. XNOR / EQUIVALENCE
----------------------------------------------------------------------

XNOR(x,y) :=
    xy ∨ ¬x¬y

RULE XNOR_01:
    XNOR(x,y)=¬(x⊕y)

RULE XNOR_02:
    XNOR(x,y)=1 iff x=y

----------------------------------------------------------------------
28. NAND FUNCTIONAL COMPLETENESS
----------------------------------------------------------------------

NAND(x,y):=¬(xy)

DERIVE_NOT_FROM_NAND:
    ¬x = NAND(x,x)

DERIVE_AND_FROM_NAND:
    xy = NAND(NAND(x,y),NAND(x,y))

DERIVE_OR_FROM_NAND:
    x∨y =
    NAND(
        NAND(x,x),
        NAND(y,y)
    )

THEOREM NAND_COMPLETE:
    every Boolean function can be expressed using NAND alone.

----------------------------------------------------------------------
29. NOR FUNCTIONAL COMPLETENESS
----------------------------------------------------------------------

NOR(x,y):=¬(x∨y)

DERIVE_NOT_FROM_NOR:
    ¬x=NOR(x,x)

DERIVE_OR_FROM_NOR:
    x∨y=NOR(NOR(x,y),NOR(x,y))

DERIVE_AND_FROM_NOR:
    xy=
    NOR(
        NOR(x,x),
        NOR(y,y)
    )

THEOREM NOR_COMPLETE:
    every Boolean function can be expressed using NOR alone.

----------------------------------------------------------------------
30. FUNCTIONAL COMPLETENESS
----------------------------------------------------------------------

ENTITY FunctionallyCompleteOperatorSet S

FUNCTIONALLY_COMPLETE(S) iff
    every Boolean function can be represented using operators from S.

KNOWN_COMPLETE_SETS include:
    {NOT,AND}
    {NOT,OR}
    {NAND}
    {NOR}

----------------------------------------------------------------------
31. SET-THEORETIC INTERPRETATION
----------------------------------------------------------------------

MAP BooleanAlgebra -> SetAlgebra {

    Boolean 0 -> empty_set

    Boolean 1 -> universal_set

    x ∧ y -> intersection(X,Y)

    x ∨ y -> union(X,Y)

    ¬x -> complement(X)
}

RULE SET_01:
    Boolean identities correspond to set identities under this mapping.

----------------------------------------------------------------------
32. PROPOSITIONAL LOGIC INTERPRETATION
----------------------------------------------------------------------

MAP BooleanAlgebra -> PropositionalLogic {

    0 -> False

    1 -> True

    ∧ -> conjunction

    ∨ -> disjunction

    ¬ -> negation

    ⊕ -> exclusive_or
}

RULE LOGIC_01:
    Boolean equivalence corresponds to logical equivalence.

----------------------------------------------------------------------
33. SWITCHING ALGEBRA INTERPRETATION
----------------------------------------------------------------------

MAP BooleanValue -> SwitchingState {

    0 -> OFF

    1 -> ON
}

MAP:
    AND -> series_condition
    OR -> parallel_condition
    NOT -> inversion

RULE SWITCH_01:
    switching circuits may be represented as Boolean expressions.

----------------------------------------------------------------------
34. PARTIAL ORDER
----------------------------------------------------------------------

DEFINE:
    x <= y iff x ∧ y = x

EQUIVALENT:
    x <= y iff x ∨ y = y

RULE ORDER_01:
    Boolean algebra induces a bounded partial order.

BOTTOM := 0
TOP := 1

----------------------------------------------------------------------
35. BOOLEAN ALGEBRA AS LATTICE
----------------------------------------------------------------------

MAP:
    meet := ∧
    join := ∨
    bottom := 0
    top := 1
    complement := ¬

THEOREM:
    Boolean algebra is a complemented distributive bounded lattice.

----------------------------------------------------------------------
36. ATOMS
----------------------------------------------------------------------

ENTITY Atom a {
    condition:
        a != 0
        AND no x exists such that 0 < x < a
}

RULE ATOM_01:
    finite Boolean algebras are atomic.

RULE ATOM_02:
    every element of finite Boolean algebra is join of atoms below it.

----------------------------------------------------------------------
37. FINITE BOOLEAN ALGEBRAS
----------------------------------------------------------------------

THEOREM FINITE_BA_01:
    finite Boolean algebra has cardinality 2^n
    for some nonnegative integer n.

THEOREM FINITE_BA_02:
    every finite Boolean algebra is isomorphic to power set algebra
    P(X) for some finite X.

----------------------------------------------------------------------
38. POWER SET BOOLEAN ALGEBRA
----------------------------------------------------------------------

ENTITY PowerSetBooleanAlgebra P(X) {

    carrier:
        power_set(X)

    meet:
        intersection

    join:
        union

    complement:
        relative_complement_in_X

    zero:
        empty_set

    one:
        X
}

----------------------------------------------------------------------
39. BOOLEAN HOMOMORPHISMS
----------------------------------------------------------------------

IS_BOOLEAN_HOMOMORPHISM(h:A->B) iff

    h(0_A)=0_B

    h(1_A)=1_B

    h(x∨y)=h(x)∨h(y)

    h(x∧y)=h(x)∧h(y)

    h(¬x)=¬h(x)

RULE BHOM_01:
    preservation of suitable primitive operations may imply preservation
    of the remaining derived operations.

----------------------------------------------------------------------
40. BOOLEAN ISOMORPHISM
----------------------------------------------------------------------

IS_BOOLEAN_ISOMORPHISM(h) iff
    IS_BOOLEAN_HOMOMORPHISM(h)
    AND bijective(h)

RULE BISO_01:
    isomorphic Boolean algebras satisfy identical Boolean identities.

----------------------------------------------------------------------
41. IDEALS
----------------------------------------------------------------------

ENTITY BooleanIdeal I {
    parent: B
}

IS_IDEAL(I,B) iff

    0 in I

    downward_closed:
        x in I AND y<=x -> y in I

    join_closed:
        x,y in I -> x∨y in I

----------------------------------------------------------------------
42. FILTERS
----------------------------------------------------------------------

ENTITY BooleanFilter F {
    parent: B
}

IS_FILTER(F,B) iff

    1 in F

    upward_closed:
        x in F AND x<=y -> y in F

    meet_closed:
        x,y in F -> x∧y in F

RULE FILTER_01:
    complements exchange ideals and filters.

----------------------------------------------------------------------
43. ULTRAFILTERS
----------------------------------------------------------------------

IS_ULTRAFILTER(U,B) iff
    U proper_filter
    AND maximal among proper filters

EQUIVALENT_PROPERTY:
    for every x in B:
        exactly one of x or ¬x lies in U

----------------------------------------------------------------------
44. BOOLEAN RINGS
----------------------------------------------------------------------

MAP BooleanAlgebra -> BooleanRing {

    multiplication:
        x*y := x∧y

    addition:
        x+y := x⊕y

    zero:
        0
}

BOOLEAN_RING_PROPERTY:
    x^2=x

THEOREM:
    Boolean algebras and Boolean rings are categorically equivalent
    under standard constructions.

----------------------------------------------------------------------
45. EXPRESSION PARSING
----------------------------------------------------------------------

PRECEDENCE := [
    NOT,
    AND,
    XOR,
    OR
]

RULE PARSE_01:
    explicit parentheses override default precedence.

RULE PARSE_02:
    repeated NOT associates inward to its operand.

----------------------------------------------------------------------
46. EVALUATION
----------------------------------------------------------------------

PROCEDURE EVALUATE(E,assignment):

    substitute Boolean values

    evaluate NOT

    evaluate AND/NAND

    evaluate XOR/XNOR if present

    evaluate OR/NOR

    RETURN 0 or 1

----------------------------------------------------------------------
47. NORMALISATION
----------------------------------------------------------------------

PROCEDURE NORMALISE_TO_SOP(E):

    eliminate implication/equivalence if present

    push NOT inward using De Morgan

    eliminate double negation

    distribute AND over OR

    simplify

    RETURN SOP

PROCEDURE NORMALISE_TO_POS(E):

    eliminate implication/equivalence if present

    push NOT inward

    distribute OR over AND

    simplify

    RETURN POS

----------------------------------------------------------------------
48. CANONICALISATION
----------------------------------------------------------------------

PROCEDURE TO_CANONICAL_SOP(E):

    build truth table

    identify rows output=1

    create minterms

    OR minterms

    RETURN canonical_SOP

PROCEDURE TO_CANONICAL_POS(E):

    build truth table

    identify rows output=0

    create maxterms

    AND maxterms

    RETURN canonical_POS

----------------------------------------------------------------------
49. SEMANTIC RELATIONSHIPS
----------------------------------------------------------------------

RELATION HAS_VARIABLE(BooleanExpression,BooleanVariable)
RELATION HAS_OPERATOR(BooleanExpression,BooleanOperation)
RELATION DEFINES(BooleanExpression,BooleanFunction)
RELATION HAS_TRUTH_TABLE(BooleanFunction,TruthTable)
RELATION EQUIVALENT_TO(BooleanExpression,BooleanExpression)
RELATION DUAL_OF(BooleanExpression,BooleanExpression)
RELATION SIMPLIFIES_TO(BooleanExpression,BooleanExpression)
RELATION NORMALISES_TO(BooleanExpression,NormalForm)
RELATION HAS_MINTERM(BooleanFunction,Minterm)
RELATION HAS_MAXTERM(BooleanFunction,Maxterm)

----------------------------------------------------------------------
50. SEMANTIC EQUIVALENCE
----------------------------------------------------------------------

SEMANTIC_EQUIVALENCE {

    "Boolean addition" ~= OR
    "Boolean multiplication" ~= AND
    "logical sum" ~= OR
    "logical product" ~= AND
    "complement" ~= NOT
    "negation" ~= NOT
    "exclusive OR" ~= XOR
    "logical equivalence" ~= XNOR
    "product term" ~= conjunction_of_literals
    "sum term" ~= disjunction_of_literals
    "SOP" ~= SumOfProducts
    "POS" ~= ProductOfSums
    "canonical SOP" ~= sum_of_minterms
    "canonical POS" ~= product_of_maxterms
    "truth assignment" ~= variable_to_boolean_mapping
}

----------------------------------------------------------------------
51. QUERY INTERPRETATION
----------------------------------------------------------------------

QUERY_CLASS Q1:
    "simplify E"
    -> SIMPLIFY_BOOLEAN(E)

QUERY_CLASS Q2:
    "are A and B equivalent"
    -> VALIDATE_EQUIVALENCE(A,B)

QUERY_CLASS Q3:
    "truth table for E"
    -> BUILD_TRUTH_TABLE(E)

QUERY_CLASS Q4:
    "canonical SOP"
    -> TO_CANONICAL_SOP(E)

QUERY_CLASS Q5:
    "canonical POS"
    -> TO_CANONICAL_POS(E)

QUERY_CLASS Q6:
    "dual of E"
    -> DUAL_TRANSFORM(E)

QUERY_CLASS Q7:
    "implement using NAND"
    -> transform using NAND completeness rules

QUERY_CLASS Q8:
    "implement using NOR"
    -> transform using NOR completeness rules

----------------------------------------------------------------------
52. RECURSIVE REASONING ENGINE
----------------------------------------------------------------------

PROCEDURE BOOLEAN_REASONER(input):

    parse variables
    parse constants
    parse operators
    parse grouping

    validate expression syntax

    classify target

    extract requested form

    choose valid Boolean laws

    apply transformations atomically

    preserve equivalence

    reduce complexity where possible

    validate final expression by:
        symbolic equivalence
        OR truth-table equivalence

    RETURN:
        result
        derivation
        canonical_status
        confidence

----------------------------------------------------------------------
53. RECURSIVE TRANSITION
----------------------------------------------------------------------

RECURSIVE_RULE RR_01:

    state := E_n

    if target form reached:
        terminate

    identify applicable Boolean identities

    choose transformation T satisfying:
        BOOLEAN_EQUIVALENT(E_n,T(E_n))

    E_(n+1):=T(E_n)

    validate local equivalence

    recurse(E_(n+1))

TERMINATION_CONDITIONS := {
    simplified_fixed_point,
    requested_normal_form,
    requested_canonical_form,
    proof_complete,
    counterexample_found,
    no_valid_rule
}

----------------------------------------------------------------------
54. ERROR MODEL
----------------------------------------------------------------------

ERROR E_INVALID_BOOLEAN_VALUE
ERROR E_UNKNOWN_VARIABLE
ERROR E_MALFORMED_EXPRESSION
ERROR E_ARITY_MISMATCH
ERROR E_INVALID_DISTRIBUTION
ERROR E_INVALID_DEMORGAN
ERROR E_NON_EQUIVALENT_TRANSFORMATION
ERROR E_CANONICAL_TERM_MISSING_LITERAL
ERROR E_TRUTH_TABLE_ROW_MISMATCH
ERROR E_OPERATOR_PRECEDENCE
ERROR E_LOST_COMPLEMENT

----------------------------------------------------------------------
55. VALIDATION ENGINE
----------------------------------------------------------------------

PROCEDURE VALIDATE_TRANSFORMATION(A,B):

    symbolic_result :=
        derive_equivalence(A,B)

    if symbolic_result=VALID:
        return VALID

    compare truth tables

    if identical:
        return VALID

    else:
        return INVALID with first differing assignment

----------------------------------------------------------------------
56. CONFIDENCE MODEL
----------------------------------------------------------------------

CONFIDENCE {

    base := 1.00

    deduct 0.10 if operator notation ambiguous
    deduct 0.10 if precedence inferred
    deduct 0.15 if symbolic proof incomplete
    deduct 0.20 if truth-table verification omitted when needed
    deduct 0.25 if variable domain unclear

    clamp_to_[0,1]

    classification:
        [0.95,1.00] -> very_high
        [0.85,0.95) -> high
        [0.70,0.85) -> moderate
        [0.50,0.70) -> low
        [0.00,0.50) -> insufficient
}

----------------------------------------------------------------------
57. AI CONSUMPTION MODEL
----------------------------------------------------------------------

AI_CONSUMPTION {

    read_order := [
        domain,
        operators,
        axioms,
        derived_laws,
        expressions,
        equivalence,
        truth_tables,
        normal_forms,
        canonical_forms,
        duality,
        simplification,
        validation
    ]

    execution_policy := {
        preserve_boolean_domain,
        preserve_operator_semantics,
        preserve_equivalence,
        respect_precedence,
        distinguish_SOP_from_canonical_SOP,
        distinguish_POS_from_canonical_POS,
        validate transformations,
        use_truth_tables_as_semantic_ground_truth
    }
}

----------------------------------------------------------------------
58. UPDATE MODEL
----------------------------------------------------------------------

UPDATE_MODEL {

    extensible := true

    new_operator_requires:
        arity,
        truth_function

    new_identity_requires:
        formal_equivalence_proof
        OR exhaustive_truth_validation

    new_normal_form_requires:
        formation_rules,
        equivalence_preservation,
        validation_method

    conflicts_require:
        explicit_versioning

    standard_boolean_meaning_has_priority := true
}

----------------------------------------------------------------------
59. SELF-CHECK
----------------------------------------------------------------------

SELF_CHECK {

    CHECK all variables Boolean-valued
    CHECK operator arities correct
    CHECK every transformation equivalence-preserving
    CHECK complements applied to correct scope
    CHECK De Morgan swaps AND/OR correctly
    CHECK canonical minterms contain every variable
    CHECK canonical maxterms contain every variable
    CHECK truth table has exactly 2^n rows
    CHECK simplified result matches original truth table
    CHECK dual transformation swaps 0/1 and AND/OR
    CHECK final result validated
}

----------------------------------------------------------------------
60. COMPLETION CONDITIONS
----------------------------------------------------------------------

COMPLETE iff {

    boolean_domain_defined
    AND operators_defined
    AND axioms_defined
    AND derived_laws_defined
    AND expressions_defined
    AND functions_defined
    AND truth_tables_defined
    AND equivalence_defined
    AND duality_defined
    AND simplification_defined
    AND SOP_defined
    AND POS_defined
    AND canonical_forms_defined
    AND NAND_NOR_completeness_defined
    AND lattice_interpretation_defined
    AND semantic_equivalence_defined
    AND recursive_reasoning_defined
    AND validation_defined
    AND confidence_defined
    AND ai_consumption_defined
    AND update_model_defined
}

IF NOT COMPLETE:
    semantic_status := incomplete_flow

----------------------------------------------------------------------
61. FLOW TERMINATION
----------------------------------------------------------------------

TERMINATE WHEN:

    requested Boolean goal achieved
    AND result equivalence-validated

OR

    requested equivalence disproved by counterexample assignment

OR

    expression malformed

OR

    no valid transformation remains

FINAL_STATE := {
    boolean_result,
    equivalent_expression,
    derivation,
    truth_validation,
    normal_form_status,
    semantic_status,
    confidence
}

} // END FLOW BooleanAlgebraOntology

======================================================================
END FLOW
======================================================================

FLOW STATUS:
Complete

CANONICAL PAGE:
https://kirethresearch.org/booksai-core/ontologies/mathematical-ontologies/algebra-ontologies/boolean-algebra-ontology.html

FLOW_HASH_SHA256: 785f39f9f69bec1b4aeb947165107f199859a86842efa884182d4a67644a6886
Kireth Research
38 Thorndale Croft, Wetwang, Driffield
East Riding of Yorkshire YO25 9XZ