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Proof step 3 from proof okarray-put-samefield (conclusion)

⊦ okarray(r, ty, st) ∧ oktype(val, fs .type, st) ∧ fs ' ≠ _type ∧ fs ' ≠ _length → okarray(r, ty, st[r -- fs ', val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ oktype(val, ty, st) ↔ okval(val, ty)
Proof step 2:
⊦ okarray(r, ty, st) ∧ fs ' ≠ _type ∧ fs ' ≠ _length → okarray(r, ty, st[r -- fs ', val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]