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package lambdapi
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Symbols and signature for unification rules.
This module provides a signature to be used to handle unification rules. The signature is not attached to any real lambdapi file and is henceforth qualified to be a "ghost" signature.
val equiv : Term.symSymbol "≡".
val cons : Term.symSymbol ";".
unpack eqs transforms a term of the form cons (equiv t u) (cons (equiv v w) ...) into a list [(t,u); (v,w); ...].
val mem : Term.sym -> boolmem s is true iff s belongs to sign.