Sun, 12 Feb 2006 21:34:24 +0100 wenzelm low-level tuning of merge: maintain identity of accesses;
Sun, 12 Feb 2006 21:34:23 +0100 wenzelm share exception UNDEF with Table;
Sun, 12 Feb 2006 21:34:22 +0100 wenzelm structure Datatab: private copy avoids potential conflict of table exceptions;
Sun, 12 Feb 2006 21:34:21 +0100 wenzelm added eq_consts;
Sun, 12 Feb 2006 21:34:20 +0100 wenzelm minor tuning of proofs, notably induct;
Sun, 12 Feb 2006 21:34:18 +0100 wenzelm simplified TableFun.join;
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