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more lemmas and some generated logical constants for them
[helm.git] / matita / matita / lib / lambda-delta / substitution / subst_defs.ma
2011-07-17 Ferruccio Guidimore lemmas and some generated logical constants for...
2011-07-13 Ferruccio Guidi- new definition of subst based on drop
2011-06-14 Ferruccio Guidisome restructuring