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Proof step 21 from proof test-sqrt-04 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 22:
even(4), 5386 ^2 ≤ 29000000 ⊦ sqrt(29000000) = 5385

Rule argument

Additional information

Used simplifier rules: lels: ⊦ ¬ i < j ↔ j ≤ i; from specification int-abs%commutativity: ⊦ i * j = j * i; from specification int-mult%associativity: ⊦ i * j * j0 = (i * j) * j0; from specification int-mult