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doc-src/Tutorial/Recdef/fib
author webertj
Wed, 26 May 2004 18:03:52 +0200
changeset 14807 e8ccb13d7774
parent 6100 40d66bc3e83f
permissions -rw-r--r--
major code change: refute can now handle any Isabelle term, adds certain axioms automatically, and can handle inductive datatypes (but not yet recursion over them)
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consts fib :: nat => nat
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recdef fib "measure(%n. n)"
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  "fib 0 = 0"
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  "fib 1 = 1"
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  "fib (Suc(Suc x)) = fib x + fib (Suc x)"
isabelle