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doc-src/Tutorial/Recdef/sep1
author wenzelm
Fri, 16 Apr 1999 16:47:30 +0200
changeset 6443 6d5d3ecedf50
parent 6100 40d66bc3e83f
permissions -rw-r--r--
lemmas about proper subset relation;

recdef sep "measure (%(a,xs). length xs)"
  "sep(a, x#y#zs) = x # a # sep(a,y#zs)"
  "sep(a, xs)     = xs"
isabelle