fixed a bug in prove_equalSubTerm where zip could sometimes get called with lists of different lengths
fixed a bug in prove_equalSubTerm where zip could sometimes get called with lists of different lengths

git-svn-id: 9ecf60ce9baff443e30a0472d3fd222fcb8117cf@9296 7b97033b-253e-4a5c-9b07-e25f9089a9fd

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