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Proof step 12 from proof exactarray-new (previous step)

exactarray(refval(r), ty, ((r -- _length = rk ⊃ val; st[r -- _length])) .intval, st[rk, val]), newref(r, st) ⊦ r = jvmref

Heuristic if-then-else split applied rule case distinction

And obtained the following new goals

Proof step 6:
r -- _length = rk, exactarray(refval(r), ty, val .intval, st[rk, val]), newref(r, st) ⊦ r = jvmref
Proof step 11:
r -- _length ≠ rk, exactarray(refval(r), ty, st[r -- _length] .intval, st[rk, val]), newref(r, st) ⊦ r = jvmref

Rule argument

[CASEDARG : pos: left 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]