src/HOL/Quot/FRACT.ML
author nipkow
Fri, 28 Nov 1997 07:41:24 +0100
changeset 4321 2a2956ccb86c
parent 4089 96fba19bcbe2
child 5069 3ea049f7979d
permissions -rw-r--r--
Removed dead code.

(*  Title:      HOL/Quot/FRACT.ML
    ID:         $Id$
    Author:     Oscar Slotosch
    Copyright   1997 Technische Universitaet Muenchen

*)
open FRACT;

goalw thy [per_def,per_NP_def]
"(op ===)=(%x y. fst(rep_NP x)*snd(rep_NP y)=fst(rep_NP y)*snd(rep_NP x))";
fr refl;
qed "inst_NP_per";


goalw thy [half_def] "half = <[abs_NP(n,2*n)]>";
fr per_class_eqI;
by (simp_tac (simpset() addsimps [inst_NP_per]) 1);
qed "test";