| disjoint(str, r ' + r0 ', st) ∧ path∃(str, r, r1, st) ∧ r ≠ r0 → disjoint(str, r1 ' + r0 ', st), path∃(str, r0, r2, st), path∃(str, r, r1, st), disjoint(str, r ' + r0 ', st) ⊦ r = r0, disjoint(str, r1 ' + r2 ', st) |
path∃(str, r0, r2, st), path∃(str, r, r1, st), disjoint(str, r ' + r0 ', st), disjoint(str, r1 ' + r0 ', st) ⊦ r = r0, disjoint(str, r1 ' + r2 ', st)
[[CONCRETESIMPRULES : ()]]