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Proof step 15 from proof isarray-put-samefield-01 (previous step)

fs = mkfs(class, ty, fieldvar), r -- fs ' ∈ st, oktype(st[r -- fs '], ty, st), oktype(val, ty, st), is_array(r, st[r -- fs ', val]), r ∈ st ⊦ fs ' = _length, fs ' = _type, is_array(r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
r -- mkfs(class, ty, fieldvar) ' ∈ st, oktype(st[r -- mkfs(class, ty, fieldvar) '], ty, st), oktype(val, ty, st), is_array(r, st[r -- mkfs(class, ty, fieldvar) ', val]), r ∈ st ⊦ mkfs(class, ty, fieldvar) ' = _length, mkfs(class, ty, fieldvar) ' = _type, is_array(r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]