Description: 5 is less than 10. (Contributed by Mario Carneiro, 10-Mar-2015) (Revised by AV, 8-Sep-2021)
Ref | Expression | ||
---|---|---|---|
Assertion | 5lt10 | ⊢ 5 < ; 1 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 5lt6 | ⊢ 5 < 6 | |
2 | 6lt10 | ⊢ 6 < ; 1 0 | |
3 | 5re | ⊢ 5 ∈ ℝ | |
4 | 6re | ⊢ 6 ∈ ℝ | |
5 | 10re | ⊢ ; 1 0 ∈ ℝ | |
6 | 3 4 5 | lttri | ⊢ ( ( 5 < 6 ∧ 6 < ; 1 0 ) → 5 < ; 1 0 ) |
7 | 1 2 6 | mp2an | ⊢ 5 < ; 1 0 |