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Proof step 27 from proof addarrays-fieldat (previous step)

¬ (ints = [] ∨ n→i(# refs) ≠ countrefs(ints) ∨ ¬ posints(ints)), is_fskey(sk) ⊦ sk = _length, sk = _type, (addarrays(refs, ty, ints, i, st)[r -- sk]) = st[r -- sk]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
n→i(# refs) = countrefs(ints), is_fskey(sk), posints(ints) ⊦ ints = [], (addarrays(refs, ty, ints, i, st)[r -- sk]) = st[r -- sk], sk = _type, sk = _length

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]