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Proof step 57 from proof fits-put-short-01 (previous step)

∀ r, st, r1, fs, sho, str. fits(r, sks0, st[r1 -- fs ', shortval(sho)]) ∧ is_shortvalue(st[r1 -- fs ']) → junkref(str, r, st) ∨ fits(r, sks0, st), fits(r, sk + sks0, st[r1 -- fs ', shortval(sho)]), is_shortvalue(st[r1 -- fs ']) ⊦ junkref(str, r, st), fits(r, sk + sks0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 56:
is_shortvalue(st[r1 -- fs ']), fits(r, sk ' + sks0, st[r1 -- fs ', shortval(sho)]), ∀ r, st, r1, fs, sho, str. fits(r, sks0, st[r1 -- fs ', shortval(sho)]) ∧ is_shortvalue(st[r1 -- fs ']) → junkref(str, r, st) ∨ fits(r, sks0, st) ⊦ junkref(str, r, st), fits(r, sk ' + sks0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ sk + sks = sk ' + sks])]]