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Proof step 73 from proof lagrange-lemma (previous step)

j1 ^2 + j0 ^2 < 0, 0 ≤ j1, 0 ≤ j, prime(j), j0 ≤ (j - 1) / 2, j1 ≤ (j - 1) / 2, 0 ≤ j0, 0 < j, i ≤ 0, i < j ⊦ j = 2

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 74:
¬ i < 0, ¬ j < 0 ⊦ ¬ i + j < 0

Rule argument

spec: int-basic2 inst: name: pls-01 seq: ¬ i < 0, ¬ j < 0 ⊦ ¬ i + j < 0 subst: [j, i] → [j0 ^2, j1 ^2] flags: rewrite

Additional information

Used simplifier rules: two-not-neg: ⊦ ¬ i ^2 < 0; from specification int-square Used terms: j0 ^2, j1 ^2