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Proof step 43 from proof junkrefs-put-array-norefval (previous step)

okval(val, st[r1 -- _type] .type .type), junkrefs(str, refs, ty, st[r1 -- i ', val]) ⊦ is_referencevalue(val), junkrefs(str, refs, ty, st)

User applied rule structural induction

And obtained the following new goals

Proof step 1:
⊦ ¬ junkrefs(str, [], ty, st)
Proof step 42:
∀ val, st, r1, str, ty, i. okval(val, st[r1 -- _type] .type .type) ∧ junkrefs(str, acc, ty, st[r1 -- i ', val]) → is_referencevalue(val) ∨ junkrefs(str, acc, ty, st), okval(val, st[r1 -- _type] .type .type), junkrefs(str, r + acc, ty, st[r1 -- i ', val]) ⊦ is_referencevalue(val), junkrefs(str, r + acc, ty, st)

Rule argument

[VARWITHVARSEQSARG : refs, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : references generated by [], +;])]]