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Proof step 2 from proof bint-num-in (previous step)

~2147483648 ≤ i, i < 2147483648 ⊦ bi2i(i2bi(i)) = i

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ bi2i(i2bi(i)) = cast(32, i)
Proof step 4:
~2147483648 ≤ i, i < 2147483648 ⊦ cast(32, i) = i

Rule argument

name: bint-is-cast rotate: F subst: [i] → [i]

Additional information

Used terms: i