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doc-src/Tutorial/Recdef/sep1
author paulson
Thu, 17 Aug 2000 11:56:47 +0200
changeset 9634 61b57cc1cb5a
parent 6100 40d66bc3e83f
permissions -rw-r--r--
modified proofs: better rules for cancellation of common factors across comparisons

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