Sat, 16 Jun 2007 15:01:54 +0200 The simprocs "divide_cancel_factor" and "ring_eq_cancel_factor" no
nipkow [Sat, 16 Jun 2007 15:01:54 +0200] rev 23400
The simprocs "divide_cancel_factor" and "ring_eq_cancel_factor" no longer need class numeral_ring. This made a number of special simp-thms redundant.
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