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doc-src/Tutorial/Recdef/last
author paulson
Wed, 21 Jul 1999 15:17:30 +0200
changeset 7053 8f246bc87ab2
parent 6100 40d66bc3e83f
permissions -rw-r--r--
tweaked proof after removal of diff_is_0_eq RS iffD2

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