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doc-src/Tutorial/Misc/Fib.thy
author ballarin
Tue, 30 Sep 2003 15:10:26 +0200
changeset 14213 7bf882b0a51e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Changed order of prems in finprod_cong. Slight speedup.
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Fib = WF_Rel +
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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)"
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end
isabelle