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moved balanced tree operations to General/balanced_tree.ML;
2007-06-19, by wenzelm
added with_subgoal;
2007-06-19, by wenzelm
balanced conjunctions;
2007-06-19, by wenzelm
balanced conjunctions;
2007-06-19, by wenzelm
added General/balanced_tree.ML;
2007-06-19, by wenzelm
BalancedTree;
2007-06-19, by wenzelm
balanced conjunctions;
2007-06-19, by wenzelm
tuned;
2007-06-19, by wenzelm
generalized proofs so that call graphs can have any node type.
2007-06-19, by krauss
macbroy5: trying -j 2;
2007-06-19, by wenzelm
tuned conjunction tactics: slightly smaller proof terms;
2007-06-18, by wenzelm
tuned laws for cancellation in divisions for fields.
2007-06-17, by nipkow
moved nonzero_mult_divide_cancel_right to Ring_and_Field as nonzero_mult_divide_cancel_right'; tuned proofs
2007-06-17, by chaieb
Added eta_conv and eta-expansion conversion: waiting for it to be in thm.ML; exported is_refl
2007-06-17, by chaieb
gen_qelim_conv now reduces the universal quatifier to the existential one; Now also deals with Ex f for eta-contracted f;
2007-06-17, by chaieb
thin_prems_tac first max-scopes universal quantifiers; eta_conv moved to Pure/conv.ML
2007-06-17, by chaieb
Tuned error messages; tuned;
2007-06-17, by chaieb
normalizer conversions depend on the proof context; added functions for conversion and wrapper that sill depend on the variable ordering (_ord)
2007-06-17, by chaieb
added theorems nonzero_mult_divide_cancel_right' nonzero_mult_divide_cancel_left' ordered_field_no_lb ordered_field_no_ub
2007-06-17, by chaieb
moved lemma all_not_ex to HOL.thy ; tuned proofs
2007-06-17, by chaieb
Tuned instantiation of Groebner bases to fields
2007-06-17, by chaieb
added Theorem all_not_ex
2007-06-17, by chaieb
renamed vars in zle_trans for compatibility
2007-06-17, by nipkow
tuned
2007-06-16, by nipkow
The simprocs "divide_cancel_factor" and "ring_eq_cancel_factor" no
2007-06-16, by nipkow
Locally added definition of "int :: nat => int" again to make
2007-06-15, by berghofe
made divide_self a simp rule
2007-06-15, by nipkow
Removed thunk from Fun
2007-06-15, by nipkow
Church numerals added
2007-06-15, by nipkow
method assumption: uniform treatment of prems as legacy feature;
2007-06-14, by wenzelm
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