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Proof step 22 from proof test-sqrt-04 (previous step)

even(4), 5386 ^2 ≤ 29000000 ⊦ sqrt(29000000) = 5385

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 23:
⊦ i ^2 = i * i

Rule argument

spec: int-square inst: name: Square-def seq: ⊦ i ^2 = i * i subst: [i] → [5386] flags: rewrite

Additional information

Used simplifier rules: associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult%commutativity: ⊦ i * j = j * i; from specification int-mult Used terms: 5386