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Proof step 27 from proof pathex-putstatfield (previous step)

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

Heuristic weak cut applied rule cut formula

And obtained the following new goals

Proof step 22:
refs0 = [], validrefs(str, r ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ path∃(str, r, (r ' + refs0) .last, st)
Proof step 26:
validrefs(str, r ' + refs0, mkclasstype(`java.lang.Object' .class), st) ⊦ refs0 = [], path∃(str, r, (r ' + refs0) .last, st)

Rule argument

[fma-arg: refs0 = []]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRAFMAS : (refs0 = [])]]