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Answers and rating deltas for

Why does my Prolog predicate invert/2 not work?

Author Votes Δ
repeat 3 +1.58
mat 2 -0.22
Boris 2 +0.47
Ans Piter 0 -2.12
CapelliC 0 -1.23
Last visited: Apr 25, 2016, 12:20:50 PM