Description: ltp1 without ax-mulcom . (Contributed by SN, 13-Feb-2024)
Ref | Expression | ||
---|---|---|---|
Assertion | sn-ltp1 | ⊢ ( 𝐴 ∈ ℝ → 𝐴 < ( 𝐴 + 1 ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re | ⊢ 1 ∈ ℝ | |
2 | sn-0lt1 | ⊢ 0 < 1 | |
3 | sn-ltaddpos | ⊢ ( ( 1 ∈ ℝ ∧ 𝐴 ∈ ℝ ) → ( 0 < 1 ↔ 𝐴 < ( 𝐴 + 1 ) ) ) | |
4 | 2 3 | mpbii | ⊢ ( ( 1 ∈ ℝ ∧ 𝐴 ∈ ℝ ) → 𝐴 < ( 𝐴 + 1 ) ) |
5 | 1 4 | mpan | ⊢ ( 𝐴 ∈ ℝ → 𝐴 < ( 𝐴 + 1 ) ) |