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Proof step 11 from proof prime-631 (previous step)

631 % i = 0, i * i ≤ 631, 0 < i, 1 < i, i < 20 ⊦

User applied rule insert lemma

And obtained the following new goals

Proof step 12:
10 ≤ i, i < 20 ⊦ i = 10 ∨ i = 11 ∨ i = 12 ∨ i = 13 ∨ i = 14 ∨ i = 15 ∨ i = 16 ∨ i = 17 ∨ i = 18 ∨ i = 19
Proof step 13:
631 % i = 0, i * i ≤ 631, 0 < i, 1 < i, i < 20 ⊦ 10 ≤ i

Rule argument

spec: inst: name: case-20 seq: 10 ≤ i, i < 20 ⊦ i = 10 ∨ i = 11 ∨ i = 12 ∨ i = 13 ∨ i = 14 ∨ i = 15 ∨ i = 16 ∨ i = 17 ∨ i = 18 ∨ i = 19 subst: [i] → [i] flags: current, []

Additional information

Used terms: i