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src/HOL/Real/RealArith.ML
author nipkow
Fri, 01 Dec 2000 19:53:29 +0100
changeset 10574 8f98f0301d67
parent 9436 62bb04ab4b01
child 10648 a8c647cfa31f
permissions -rw-r--r--
Linear arithmetic now copes with mixed nat/int formulae.

(*useful??*)
Goal "(z = z + w) = (w = (#0::real))";
by Auto_tac;
qed "real_add_left_cancel0";
Addsimps [real_add_left_cancel0];
isabelle