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doc-src/Tutorial/Recdef/last
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

consts last :: 'a list => 'a
recdef last "measure (%xs. length xs)"
  "last [x]      = x"
  "last (x#y#zs) = last (y#zs)"
isabelle