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##
##  Morphisms.gd                homalg package               Mohamed Barakat
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##  Copyright 2007-2008 Lehrstuhl B für Mathematik, RWTH Aachen
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##  Declarations of homalg procedures for morphisms of abelian categories.
##
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#
# global functions and operations:
#
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# basic operations:

DeclareOperation( "Resolution",
        [ IsInt, IsHomalgStaticMorphism ] );

DeclareOperation( "Resolution",
        [ IsHomalgStaticMorphism ] );

DeclareOperation( "CokernelSequence",
        [ IsHomalgStaticMorphism ] );

DeclareOperation( "CokernelCosequence",
        [ IsHomalgStaticMorphism ] );

DeclareOperation( "KernelSequence",
        [ IsHomalgStaticMorphism ] );

DeclareOperation( "KernelCosequence",
        [ IsHomalgStaticMorphism ] );