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doc-src/Tutorial/Misc/Last.thy
author paulson
Mon, 24 Nov 2003 15:33:07 +0100
changeset 14266 08b34c902618
parent 5377 efb799c5ed3c
permissions -rw-r--r--
conversion of integers to use Ring_and_Field; new lemmas for Ring_and_Field
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Last = List +
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consts last :: 'a list => 'a
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recdef last "measure (%xs. length xs)"
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    "last [x]      = x"
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    "last (x#y#zs) = last (y#zs)"
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end
isabelle