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Proof step 4 from proof pathex-levelsubset (previous step)

level⊆(str, str0), validrefs(str, r ' + refs1, mkclasstype(`java.lang.Object' .class), st) ⊦ validrefs(str0, r ' + refs1, mkclasstype(`java.lang.Object' .class), st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ level⊆(str, str0) ∧ validrefs(str, refs, ty0, st) → validrefs(str0, refs, ty0, st)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: validrefs-levelsubset antecedent: succedent: level⊆(str, str0) ∧ validrefs(str, refs, ty0, st) → validrefs(str0, refs, ty0, st) substlist: [str, str0, refs, ty0, st] → [str, str0, r ' + refs1, mkclasstype(`java.lang.Object' .class), st] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 0)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, str0, r ' + refs1, mkclasstype(`java.lang.Object' .class), st)]]