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Proof step 1 from proof setShort-theorem-01 (conclusion)

⊦ fillsgn(2, int2bytes(s2i(sho))) = i2b(s2i(sho) i>> 8) + i2b(s2i(sho))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
⊦ fillsgn(2, int2bytes(s2i(sho))) = i2b(s2i(sho) i>> 8) ' + i2b(s2i(sho)) '

Rule argument

Additional information

Used simplifier rules: Two: ⊦ by + by0 = by ' + by0 '; from specification list[bytelist]