Merge pull request #66 from gap-packages/avoid

avoid trivial function wrappers
gap-packages · Jan 6, 2024 · f082355 · f082355
2 parents bf372ad + 3158e58
commit f082355
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Showing 3 changed files with 9 additions and 3 deletions.
diff --git a/init.g b/init.g
@@ -8,6 +8,12 @@
 if not IsBound( PreImagesRepresentativeNC ) then 
     BindGlobal( "PreImagesRepresentativeNC", PreImagesRepresentative ); 
 fi; 
+if not IsBound( IsMatrixOrMatrixObj ) then 
+    BindGlobal( "IsMatrixOrMatrixObj", IsMatrix ); 
+fi; 
+if not IsBound( MutableCopyMatrix ) then 
+    BindGlobal( "MutableCopyMatrix", ShallowCopy ); 
+fi; 
 
 ##  read the function declarations
 

diff --git a/lib/lcset.gi b/lib/lcset.gi
@@ -149,7 +149,7 @@ InstallMethod( LeftCosetsNC, "generic", IsIdenticalObj, [ IsGroup, IsGroup ], 0,
 function( G, U )
     local L; 
     L := RightCosetsNC( G, U ); 
-    return List( L, rc -> Inverse( rc ) ); 
+    return List( L, Inverse ); 
 end);
 
 
diff --git a/lib/lists.gi b/lib/lists.gi
@@ -279,8 +279,8 @@ function( G, H )
         Error( "<H> must be a subgroup of <G>" );
     fi;
     R := RightCosets( G, H );
-    ER := List( R, x -> Elements( x ) );
-    EL := List( ER, C -> List( C, x -> x^(-1) ) );
+    ER := List( R, Elements );
+    EL := List( ER, C -> List( C, Inverse ) );
     Info( InfoUtils, 3, "right cosets: ", ER );
     Info( InfoUtils, 3, " left cosets: ", EL );
     T := CommonRepresentatives( EL, ER );