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notational change of lift, drop, and gget
[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / substitution / fquq_alt.ma
2014-09-15 Ferruccio Guidinotational change of lift, drop, and gget
2014-06-28 Ferruccio Guidi- ldrop is now drop as in basic_1
2014-06-01 Ferruccio Guidi- some refactoring and minor additions