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Proof step 38 from proof addarray-put-01 (previous step)

sk = i ', r -- sk ∈ addarray(r, ty, 1 + i0, st), 0 ≤ i0, is_indexkey(sk), i < 0 ∨ i0 < i ⊦ sk = 0 ', sk = _type, sk = _length, r -- sk ∈ st

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 37:
r -- i ' ∈ addarray(r, ty, 1 + i0, st), 0 ≤ i0, i < 0 ∨ i0 < i ⊦ i = 0, r -- i ' ∈ st

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_indexkey(i ')], [CSIMPSEQ : ⊦ _length ≠ i '], [CSIMPSEQ : ⊦ _type ≠ i '], [CSIMPSEQ : ⊦ i ' = i0 ' ↔ i = i0])]]