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Proof step 2 from proof ubyte-inj (previous step)

ub2i(by) = ub2i(by0) ⊦ by = by0

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ b2i(by) < 0 → ub2i(by) = 256 + b2i(by)
Proof step 4:
¬ b2i(by) < 0, ub2i(by) = ub2i(by0) ⊦ by = by0
Proof step 11:
b2i(by) < 0, 256 + b2i(by) = ub2i(by0) ⊦ by = by0

Rule argument

name: ubyte-neg rotate: F subst: [by] → [by]

Additional information

Used terms: by