Mercurial Mercurial > repos > isabelle / annotate
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc-src/Tutorial/Ifexpr/bool2if
author paulson
Thu, 17 Aug 2000 11:56:47 +0200
changeset 9634 61b57cc1cb5a
parent 5377 efb799c5ed3c
permissions -rw-r--r--
modified proofs: better rules for cancellation of common factors across comparisons
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     1
 
consts bool2if :: boolex => ifex
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     2
 
primrec
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     3
 
"bool2if (Const b) = CIF b"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     4
 
"bool2if (Var x)   = VIF x"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     5
 
"bool2if (Neg b)   = IF (bool2if b) (CIF False) (CIF True)"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     6
 
"bool2if (And b c) = IF (bool2if b) (bool2if c) (CIF False)"
isabelle