Quotient-Isabelle.pdf
author Christian Urban <urbanc@in.tum.de>
Sat, 20 Mar 2010 16:27:51 +0100
changeset 1564 a4743b7cd887
parent 763 e343a6e4e1cd
permissions -rw-r--r--
proved at_set_avoiding2 which is needed for strong induction principles

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