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Proof step 58 from proof fits-put-05-stronger (previous step)

fits(r, sks, st[r1 -- fs ', byteval(by)]), is_bytevalue(st[r1 -- fs ']) ⊦ junkref(str, r, st), fits(r, sks, st)

User applied rule structural induction

And obtained the following new goals

Proof step 1:
⊦ fits(r, [], st)
Proof step 57:
∀ r, st, r1, fs, by, str. fits(r, sks0, st[r1 -- fs ', byteval(by)]) ∧ is_bytevalue(st[r1 -- fs ']) → junkref(str, r, st) ∨ fits(r, sks0, st), fits(r, sk + sks0, st[r1 -- fs ', byteval(by)]), is_bytevalue(st[r1 -- fs ']) ⊦ junkref(str, r, st), fits(r, sk + sks0, st)

Rule argument

[VARWITHVARSEQSARG : sks, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : storekeys generated by [], +;])]]