dekker.one / on-restart-benchmarks
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on-restart-benchmarks / software / mza / share / minizinc / std / fzn_inverse.mzn
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1predicate fzn_inverse(array[int] of var int: f, 2 array[int] of var int: invf) = 3 forall(i in index_set(f), j in index_set(invf)) ( 4 f[i] in index_set(invf) /\ 5 invf[j] in index_set(f) /\ 6 (j == f[i] <-> i == invf[j]) 7 );