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Proof step 7 from proof mod-next-square (previous step)

⊦ i % 2 = 0, ((i * i) * (i + 1) * (i + 1)) % 4 = 0, i % 2 ≠ 1 ∧ 0 < i

User applied rule cut formula

And obtained the following new goals

Proof step 8:
¬ i ≤ 0 ⊦ i % 2 = 0, ((i * i) * (i + 1) * (i + 1)) % 4 = 0, i % 2 ≠ 1 ∧ 0 < i
Proof step 11:
⊦ ¬ i ≤ 0, i % 2 = 0, ((i * i) * (i + 1) * (i + 1)) % 4 = 0, i % 2 ≠ 1 ∧ 0 < i

Rule argument

fma: ¬ i ≤ 0

Additional information

Used formulas: ¬ i ≤ 0