Fri, 30 Mar 2012 12:32:35 +0200 huffman replace lemmas eval_nat_numeral with a simpler reformulation
Fri, 30 Mar 2012 12:02:23 +0200 huffman restate various simp rules for word operations using pred_numeral
Fri, 30 Mar 2012 11:52:26 +0200 huffman new lemmas for simplifying subtraction on nat numerals
Fri, 30 Mar 2012 11:16:35 +0200 huffman removed redundant nat-specific copies of theorems
Fri, 30 Mar 2012 10:41:27 +0200 huffman move more theorems from Nat_Numeral.thy to Num.thy
Fri, 30 Mar 2012 15:25:47 +0200 wenzelm "invariant" is free in main HOL (cf. 56adbf5bcc82, e64ffc96a49f);
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