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Proof step 5 from proof prime-not-four (previous step)

∀ i. 1 < i ∧ i * i ≤ 4 → 4 % i ≠ 0 ⊦

User applied rule all left

And closed the goal!

Rule argument

pos: left 1 terms: 2 abort: F discard: T computed: F

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: 2