techniques.FOL
Classes 
AtomicProposition
Clause
ClauseList
CompoundProposition
Conjunction
Connective
ConstantTerm
Disjunction
Equivalence
Existential
FalseProposition
Function
Implication
Literal
Negation
NegativeLiteral
PLConverter
PositiveLiteral
Proposition
Quantification
Quantifier
Sentence
Substitution
Symbol
Term
TermList
TrueProposition
Universal
Variable