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Proof step 1 from proof issi-ubyte (conclusion)

⊦ s2i(i2s(ub2i(by))) = ub2i(by)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
~32768 ≤ i, i ≤ 32767 ⊦ s2i(i2s((* i))) = i
Proof step 3:
¬(~32768 ≤ ub2i(by) ∧ ub2i(by) ≤ 32767) ⊦ s2i(i2s(ub2i(by))) = ub2i(by)

Rule argument

name: num-issi rotate: F subst: [i] → [ub2i(by)]

Additional information

Used terms: ub2i(by)