/usr/share/gap/lib/semipperm.gd is in gap-libs 4r7p5-2.
This file is owned by root:root, with mode 0o644.
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##
#W semipperm.gd GAP library J. D. Mitchell
##
##
#Y Copyright (C) 2013, Lehrstuhl D für Mathematik, RWTH Aachen, Germany
#Y (C) 1998 School Math and Comp. Sci., University of St Andrews, Scotland
#Y Copyright (C) 2002 The GAP Group
##
## This file contains the implementation of some basics for partial perm
## semigroups.
DeclareSynonym("IsPartialPermSemigroup", IsSemigroup and
IsPartialPermCollection);
DeclareSynonym("IsPartialPermMonoid", IsMonoid and
IsPartialPermCollection);
DeclareAttribute("DegreeOfPartialPermSemigroup", IsPartialPermSemigroup);
DeclareAttribute("CodegreeOfPartialPermSemigroup", IsPartialPermSemigroup);
DeclareAttribute("RankOfPartialPermSemigroup", IsPartialPermSemigroup);
DeclareProperty("IsSymmetricInverseSemigroup", IsSemigroup);
DeclareSynonym("IsSymmetricInverseMonoid", IsSymmetricInverseSemigroup);
DeclareOperation("SymmetricInverseSemigroup", [IsInt]);
DeclareSynonym("SymmetricInverseMonoid", SymmetricInverseSemigroup);
DeclareAttribute("IsomorphismPartialPermSemigroup", IsSemigroup);
DeclareAttribute("IsomorphismPartialPermMonoid", IsSemigroup);
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