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Proof step 10 from proof validref-nopath-superset (previous step)

refs0 = [], validrefs(str, r ' + refs0, mkclasstype(`java.lang.Object' .class), st0), validrefnotnull(str, r, st[r -- _type] .type, st), st ⊆ st0, newref((r ' + refs0) .last, st) ⊦ r = jvmref, (r ' + refs0) .last = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
validrefs(str, r ', mkclasstype(`java.lang.Object' .class), st0), validrefnotnull(str, r, st[r -- _type] .type, st), st ⊆ st0, newref(r, st) ⊦ r = jvmref

Rule argument

[emptyarg]

Additional information

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