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Proof step 4 from proof prime-7 (previous step)

7 % i = 0, i * i ≤ 7, 0 < i, 1 < i ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 5:
3 ≤ i, 7 % i = 0, i * i ≤ 7, 0 < i, 1 < i ⊦
Proof step 9:
7 % i = 0, i * i ≤ 7, 0 < i, 1 < i ⊦ 3 ≤ i

Rule argument

fma: 3 ≤ i

Additional information

Used formulas: 3 ≤ i