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Merged
cdwensley merged 5 commits into from
Dec 6, 2025
Merged

My dev #158

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b5319d6
avoid duplicate bdy in gp2obj.tst
cdwensley Dec 4, 2025
6765925
reverting groupoids requirement to version 1.78
cdwensley Dec 6, 2025
9406f14
reverting groupoids requirement to version 1.78
cdwensley Dec 6, 2025
e722399
reverting groupoids requirement to version 1.78
cdwensley Dec 6, 2025
3f63575
reverting groupoids requirement to version 1.78
cdwensley Dec 6, 2025
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4 changes: 2 additions & 2 deletions PackageInfo.g
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ SetPackageInfo( rec(
PackageName := "XMod",
Subtitle := "Crossed Modules and Cat1-Groups",
Version := "2.96-dev",
Date := "03/12/2025", # dd/mm/yyyy format
Date := "05/12/2025", # dd/mm/yyyy format
License := "GPL-2.0-or-later",

Persons := [
Expand Down Expand Up @@ -95,7 +95,7 @@ PackageDoc := rec(
Dependencies := rec(
GAP := ">=4.11.0",
NeededOtherPackages := [ ["utils", ">= 0.81"],
["groupoids", ">= 1.81"],
["groupoids", ">= 1.78"],
["HAP", ">= 1.29"],
["AutPGrp", ">= 1.10.2"],
["SmallGrp", ">= 1.4.2" ] ],
Expand Down
4 changes: 2 additions & 2 deletions doc/gp2obj.xml
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Expand Up @@ -1550,13 +1550,13 @@ and <M>(12,13) \to ( 2, 3)( 4, 6)( 7, 8) \to (12,13)</M>.
<![CDATA[
gap> s3 := Group( (11,12), (12,13) );;
gap> c3c3 := Group( [ (14,15,16), (17,18,19) ] );;
gap> bdy := GroupHomomorphismByImages( c3c3, s3,
gap> bdy3 := GroupHomomorphismByImages( c3c3, s3,
> [(14,15,16),(17,18,19)], [(11,12,13),(11,12,13)] );;
gap> a := GroupHomomorphismByImages( c3c3, c3c3,
> [(14,15,16),(17,18,19)], [(14,16,15),(17,19,18)] );;
gap> aut := Group( [a] );;
gap> act := GroupHomomorphismByImages( s3, aut, [(11,12),(12,13)], [a,a] );;
gap> X33 := XModByBoundaryAndAction( bdy, act );;
gap> X33 := XModByBoundaryAndAction( bdy3, act );;
gap> C33 := Cat1GroupOfXMod( X33 );;
gap> G33 := Source( C33 );;
gap> gpd33 := GroupGroupoid( C33 );
Expand Down
6 changes: 1 addition & 5 deletions doc/gpd2obj.xml
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Expand Up @@ -65,8 +65,6 @@ Need more investigation of <C>XModAction</C>.
<P/>
<Example>
<![CDATA[
gap> a4 := Subgroup( s4, [ (1,2,3), (2,3,4) ] );;
gap> SetName( a4, "a4" );
gap> X4 := XModByNormalSubgroup( s4, a4 );;
gap> CX4 := SinglePiecePreXModWithObjects( X4, [-6,-5,-4], false );
single piece precrossed module with objects
Expand Down Expand Up @@ -94,11 +92,9 @@ gap> Ds4 := Range( DX4 );; SetName( Ds4, "Ds4" );
Arg="pxmod" />
<Prop Name="IsPreXModWithObjects"
Arg="pxmod" />
<Prop Name="IsDirectProductWithCompleteDigraphDomain"
Arg="pxmod" />
<Description>
<Index>Is2DimensionalGroupWithObjects</Index>
The precrossed module <C>DX4</C> belongs to the category
The precrossed module <C>CX4</C> belongs to the category
<C>Is2DimensionalGroupWithObjects</C> and is, of course, a crossed module.
<P/>
</Description>
Expand Down
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