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Proof step 5 from proof validref-intarray-put (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
validref(str, r, mkarraytype(int_type), st) ⊦ validref(str, r, mkarraytype(int_type), st[r -- i ', intval(j)]), okval(intval(j), st[r -- _type] .type .type)

Rule argument

[emptyarg]

Additional information

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