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contribs: some improvements
[helm.git] / helm / software / matita / contribs / LAMBDA-TYPES / Unified-Sub / Lift / props.ma
2007-02-15 Ferruccio Guidicontribs: some improvements
2007-02-14 Ferruccio Guidisome improvements
2007-02-12 Ferruccio Guidiunified: some theorems on Lift started