Sun, 17 Jun 2007 13:39:34 +0200 chaieb Tuned error messages; tuned;
Sun, 17 Jun 2007 13:39:32 +0200 chaieb normalizer conversions depend on the proof context; added functions for conversion and wrapper that sill depend on the variable ordering (_ord)
Sun, 17 Jun 2007 13:39:29 +0200 chaieb added theorems nonzero_mult_divide_cancel_right' nonzero_mult_divide_cancel_left' ordered_field_no_lb ordered_field_no_ub
Sun, 17 Jun 2007 13:39:27 +0200 chaieb moved lemma all_not_ex to HOL.thy ; tuned proofs
Sun, 17 Jun 2007 13:39:25 +0200 chaieb Tuned instantiation of Groebner bases to fields
Sun, 17 Jun 2007 13:39:22 +0200 chaieb added Theorem all_not_ex
Sun, 17 Jun 2007 08:56:13 +0200 nipkow renamed vars in zle_trans for compatibility
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