Changes between Version 16 and Version 17 of TypeNats/Interact1
 Timestamp:
 Dec 19, 2010 6:04:52 PM (3 years ago)
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TypeNats/Interact1
v16 v17 16 16 (m + a ~ n) <=> a ~ {n  m}  n >= m 17 17 (0 + a ~ b) <=> a ~ b 18 (a + b ~ 0) <=> (a ~ 0, b ~ 0) 18 (a + b ~ 0) <=> (a ~ 0, b ~ 0)  XXX: Drop this, follows from <= rules? 19 19 (a + b ~ a) <=> (b ~ 0) 20 20 (a + b ~ b) <=> (a ~ 0)