Nominal/Ex/Weakening.thy
2012-06-18 Christian Urban used ML-antiquotation command_spec for new commands
2011-12-17 Christian Urban cleaned examples for stable branch Nominal2-Isabelle2011-1
2011-07-05 Christian Urban changed bind to binds in specifications; bind will cause trouble with Monad_Syntax
2011-01-06 Christian Urban tuned
2011-01-06 Christian Urban cleaned up weakening proof and added a version with finit sets
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