haftmann [Tue, 30 Nov 2010 15:58:09 +0100] rev 40820
more systematic and compact proofs on type relation operators using natural deduction rules
haftmann [Tue, 30 Nov 2010 15:58:09 +0100] rev 40819
adapted proofs to slightly changed definitions of congruent(2)
haftmann [Mon, 29 Nov 2010 22:47:55 +0100] rev 40818
reorienting iff in Quotient_rel prevents simplifier looping;
lemma QuotientI;
tuned theory text
haftmann [Mon, 29 Nov 2010 22:41:17 +0100] rev 40817
replaced slightly odd locale congruent2 by plain definition
haftmann [Mon, 29 Nov 2010 22:32:06 +0100] rev 40816
replaced slightly odd locale congruent by plain definition
haftmann [Mon, 29 Nov 2010 13:44:54 +0100] rev 40815
equivI has replaced equiv.intro
haftmann [Mon, 29 Nov 2010 12:15:14 +0100] rev 40814
moved generic definitions about (partial) equivalence relations from Quotient to Equiv_Relations;
moved generic definitions about relations from Quotient.thy to Predicate;
consistent use of R rather than E for relations;
more natural deduction rules