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Proof step 20 from proof pathex-trans (previous step)

path∃(str, r, r0, st), validrefs(str, r0 ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ path∃(str, r, (r0 ' + refs0) .last, st)

Heuristic weak cut applied rule cut formula

And obtained the following new goals

Proof step 19:
path∃(str, r, r0, st), validrefs(str, r0 ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ refs0 = [], path∃(str, r, (r0 ' + refs0) .last, st)

Rule argument

[fma-arg: refs0 = []]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refs + [] = refs], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ' .last = r])], [EXTRAFMAS : (refs0 = [])]]