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Proof step 19 from proof test-sqrt-05 (previous step)

odd(5) ⊦ sqrt(290000000) = 17029, 17029 ^2 ≤ 290000000 ∧ 290000000 < 17030 ^2

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 20:
⊦ i ^2 = i * i
Proof step 21:
odd(5) ⊦ sqrt(290000000) = 17029, 17029 * 17029 ≤ 290000000 ∧ 290000000 < 17030 ^2

Rule argument

spec: int-square inst: name: Square-def seq: ⊦ i ^2 = i * i subst: [i] → [17029] flags: rewrite

Additional information

Used terms: 17029