doc-src/Tutorial/Recdef/fib
author wenzelm
Fri, 03 Sep 1999 13:55:46 +0200
changeset 7446 f43d3670a3cd
parent 6100 40d66bc3e83f
permissions -rw-r--r--
added no_qed;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
6100
40d66bc3e83f *** empty log message ***
nipkow
parents:
diff changeset
     1
consts fib :: nat => nat
40d66bc3e83f *** empty log message ***
nipkow
parents:
diff changeset
     2
recdef fib "measure(%n. n)"
40d66bc3e83f *** empty log message ***
nipkow
parents:
diff changeset
     3
  "fib 0 = 0"
40d66bc3e83f *** empty log message ***
nipkow
parents:
diff changeset
     4
  "fib 1 = 1"
40d66bc3e83f *** empty log message ***
nipkow
parents:
diff changeset
     5
  "fib (Suc(Suc x)) = fib x + fib (Suc x)"