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Proof step 7 from proof validref-intarray-put-01 (previous step)

¬ (¬ is_referencevalue(intval(j)) ∧ validref(str, r, ty, st) ∧ okval(intval(j), st[r0 -- _type] .type .type)), validref(str, r, ty, st), validref(str, r0, mkarraytype(int_type), st) ⊦ validref(str, r, ty, st[r0 -- i ', intval(j)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
validref(str, r, ty, st), validref(str, r0, mkarraytype(int_type), st) ⊦ validref(str, r, ty, st[r0 -- i ', intval(j)]), okval(intval(j), st[r0 -- _type] .type .type)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_referencevalue(intval(i))])]]