Tue, 21 Jun 2011 17:17:39 +0200 blanchet peel off two or more layers in exceptional cases where the proof term refers to the proved theorems twice with the same name (e.g., "Transitive_Closure.trancl_into_trancl")
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip