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--# -path=.:mathematical:present:resource-1.0/api:prelude instance ProoftextEng of Prooftext = open LexTheoryEng, GrammarEng, SymbolicEng, SymbolEng, (C=ConstructX), CombinatorsEng, ConstructorsEng, (P=ParadigmsEng) in { oper mkLabel : Str -> Label = \s -> UsePN (P.regPN s) ; }