doc-src/Tutorial/Ifexpr/normif.ML
author nipkow
Tue, 08 Jan 2002 12:47:58 +0100
changeset 12664 acbe16e49abe
parent 5377 efb799c5ed3c
permissions -rw-r--r--
added filter_filter

Goal "!t e. valif (normif b t e) env = valif (IF b t e) env";