Nominal/Ex/Pi.thy
2012-08-07 Christian Urban definition of an auxiliary graph in nominal-primrec definitions
2012-07-15 Christian Urban added a simproc for alpha-equivalence to the simplifier
2012-07-12 Christian Urban streamlined definition of alpha-equivalence for single binders (used flip instead of swap)
2012-06-04 Christian Urban added permutation simplification to the simplifier; this makes the simplifier more powerful, but it potentially loops more often
2011-12-23 Christian Urban included Pi theory in tests
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