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Proof step 3 from proof power-of-2-01 (previous step)

4 = 2 * 2 ⊦ 2 ^ m = 1, n = 0, 4 * 2 ^ m / 2 = 2 * 2 ^ m

User applied rule insert equation

And obtained the following new goals

Proof step 4:
⊦ 2 ^ m = 1, n = 0, (2 * 2) * 2 ^ m / 2 = 2 * 2 ^ m

Rule argument

pos: left 1 flags: discard

Additional information