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Proof step 21 from proof addarrays-fieldat (previous step)

n→i(# refs) = countrefs(i0 ' + ints0), ∃ fs. sk = fs ', posints(ints0), 0 ≤ i0 ⊦ sk = _length, sk = _type, (addmultiarrays(refs, i0, [], mktype_from_dims(ty, countdims(i0 ' + ints0, i)), getdims(i0 ' + ints0), st)[r -- sk]) = st[r -- sk]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
n→i(# refs) = countrefs(i0 ' + ints0), posints(ints0), 0 ≤ i0 ⊦ fs ' = _length, fs ' = _type, (addmultiarrays(refs, i0, [], mktype_from_dims(ty, countdims(i0 ' + ints0, i)), getdims(i0 ' + ints0), st)[r -- fs ']) = st[r -- fs ']

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]