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Proof step 1 from proof two (conclusion)

⊦ m ^ (2 * n) = m ^ n * m ^ n

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ m + m = 2 * m
Proof step 3:
⊦ m ^ (n + n) = m ^ n * m ^ n

Rule argument

spec: nat-mult inst: name: two-02 seq: ⊦ m + m = 2 * m subst: [m] → [n] flags: rewrite

Additional information

Used terms: n