def testWrappedFormula(self):
"""
Test basic parsing and output of wrapped formulae.
"""
lex = Lexer(self.wformulas)
f1 = parseWFormula(lex)
print(f1)
f2 = parseWFormula(lex)
print(f2)
f3 = parseWFormula(lex)
print(f3)
f4 = parseWFormula(lex)
print(f4)
toggleDerivationOutput()
print(f1)
print(f2)
print(f3)
print(f4)
toggleDerivationOutput()
sig = f1.collectSig()
f2.collectSig(sig)
f3.collectSig(sig)
f4.collectSig(sig)
print(sig)
sig.isPred("q")
sig.isPred("r")
sig.isFun("a")
sig.isConstant("a")
def testClausification(self):
"""
Test conversion of wrapped formulas into lists of clauses.
"""
lex = Lexer(self.testformulas)
while not lex.TestTok(Token.EOFToken):
wf = parseWFormula(lex)
clauses = wFormulaClausify(wf)
enableDerivationOutput()
print("==================")
for c in clauses:
print(c)
toggleDerivationOutput()
def testCNFization(self):
"""
Test conversion of wrapped formulas into conjunctive normal
form.
"""
lex = Lexer(self.testformulas)
while not lex.TestTok(Token.EOFToken):
wf = parseWFormula(lex)
wf = wFormulaCNF(wf)
enableDerivationOutput()
self.assertTrue(wf.formula.isCNF())
deriv = wf.orderedDerivation()
print("==================")
for s in deriv:
print(s)
toggleDerivationOutput()