src/HOL/ex/NatSum.thy
author nipkow
Fri, 24 Nov 2000 16:49:27 +0100
changeset 10519 ade64af4c57c
parent 8944 96964d43a472
child 11024 23bf8d787b04
permissions -rw-r--r--
hide many names from Datatype_Universe.

NatSum = Main