| ∀ m. m +1 = n0 ∨ m +1 < n0 ↔ m < n0 ⊦ m = n0, m +1 = n0, m +1 < n0 ↔ m < n0 |
m +1 < n0, ∀ m. m +1 = n0 ∨ m +1 < n0 ↔ m < n0 ⊦ m = n0, m +1 = n0, m +1 < n0 ↔ m < n0
∀ m. m +1 = n0 ∨ m +1 < n0 ↔ m < n0 ⊦ m +1 < n0, m = n0, m +1 = n0, m +1 < n0 ↔ m < n0
Used formulas: m +1 < n0