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doc-src/Tutorial/Recdef/fib
author obua
Sun, 09 May 2004 23:04:36 +0200
changeset 14722 8e739a6eaf11
parent 6100 40d66bc3e83f
permissions -rw-r--r--
replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style

consts fib :: nat => nat
recdef fib "measure(%n. n)"
  "fib 0 = 0"
  "fib 1 = 1"
  "fib (Suc(Suc x)) = fib x + fib (Suc x)"
isabelle