t.test2(Conjunction([
a,
Not(a),
]))
t.test2(Conjunction([
Not(a),
Not(a),
]))
t.test2(Disjunction([a, b]))
t.test2(Implication(a, b))
t.test2(Equivalence(a, b))
t.test2(
Disjunction([Negation(Implication(a, b)),
Negation(Implication(b, a))]))
t.test2(Conjunction([Implication(a, b), Implication(Negation(a), c)]))
t.test2(
Equivalence(Conjunction([a, Negation(b)]),
Disjunction([a, Implication(b, a)])))
# veeela premennych (no mozno nie az tak vela)
nvars = 17
t.test2(Conjunction([Var(str(i)) for i in range(nvars)]))
t.test(Disjunction([Variable('a'), Variable('b')]), '(a|b)', [
(interps2[0], False),
(interps2[1], True),
(interps2[2], True),
(interps2[3], True),
])
t.test(Implication(Variable('a'), Variable('b')), '(a=>b)', [
(interps2[0], True),
(interps2[1], True),
(interps2[2], False),
(interps2[3], True),
])
t.test(Equivalence(Variable('a'), Variable('b')), '(a<=>b)', [
(interps2[0], True),
(interps2[1], False),
(interps2[2], False),
(interps2[3], True),
])
t.test(
Disjunction([
Negation(Implication(Variable('a'), Variable('b'))),
Negation(Implication(Variable('b'), Variable('a')))
]), '(-(a=>b)|-(b=>a))', [
(interps2[0], False),
(interps2[1], True),
(interps2[2], True),
(interps2[3], False),
(valuations2[2], False),
(valuations2[3], True),
]),
(Disjunction([Variable('a'), Variable('b')]), '(a|b)', 1, ['a', 'b'], [
(valuations2[0], False),
(valuations2[1], True),
(valuations2[2], True),
(valuations2[3], True),
]),
(Implication(Variable('a'), Variable('b')), '(a->b)', 1, ['a', 'b'], [
(valuations2[0], True),
(valuations2[1], True),
(valuations2[2], False),
(valuations2[3], True),
]),
(Equivalence(Variable('a'), Variable('b')), '(a<->b)', 1, ['a', 'b'], [
(valuations2[0], True),
(valuations2[1], False),
(valuations2[2], False),
(valuations2[3], True),
]),
(Disjunction([
Negation(Implication(Variable('a'), Variable('b'))),
Negation(Implication(Variable('b'), Variable('a')))
]), '(-(a->b)|-(b->a))', 5, ['a', 'b'], [
(valuations2[0], False),
(valuations2[1], True),
(valuations2[2], True),
(valuations2[3], False),
]),
(Conjunction([
t.testSignedForm(Not(a), None, [F(a)])
t.testSignedForm(And([a, b]), ALPHA, [T(a), T(b)])
t.testSignedForm(Or([a, b]), BETA, [T(a), T(b)])
t.testSignedForm(And([a, b, c, d]), ALPHA, [T(a), T(b), T(c), T(d)])
t.testSignedForm(Or([a, b, c, d]), BETA, [T(a), T(b), T(c), T(d)])
t.testSignedForm(Or([a, Not(b), And(c, d)]), BETA,
[T(a), T(Not(b)), T(And([c, d]))])
t.testSignedForm(Impl(a, b), BETA, [F(a), T(b)])
t.testSignedForm(Equivalence(a, b), ALPHA, [T(Impl(a, b)), T(Impl(b, a))])
correctRules = t.tested == t.passed
t.testTableau(True, [F(Implication(a, a))])
t.testTableau(True, [F(Implication(Var('a'), Var('a')))])
t.testTableau(True, [F(Or(a, Not(a)))])
t.testTableau(True, [T(a), F(a)])
t.testTableau(True, [T(a), F(a), T(a)])
t.testTableau(True, [T(a), F(a), T(b)])
(interps2[2], True),
(interps2[3], True),
])
t.test(
Implication( Variable('a'), Variable('b') ),
'(a=>b)',
[
(interps2[0], True),
(interps2[1], True),
(interps2[2], False),
(interps2[3], True),
])
t.test(
Equivalence( Variable('a'), Variable('b') ),
'(a<=>b)',
[
(interps2[0], True),
(interps2[1], False),
(interps2[2], False),
(interps2[3], True),
])
t.test(
Disjunction([
Negation(Implication(Variable('a'),Variable('b'))),
Negation(Implication(Variable('b'),Variable('a')))
]),
'(-(a=>b)|-(b=>a))',
[