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Mirrors > Home > MPE Home > Th. List > Mathboxes > lttrii | Structured version Visualization version GIF version |
Description: 'Less than' is transitive. (Contributed by SN, 26-Aug-2025.) |
Ref | Expression |
---|---|
lttrii.a | ⊢ 𝐴 ∈ ℝ |
lttrii.b | ⊢ 𝐵 ∈ ℝ |
lttrii.c | ⊢ 𝐶 ∈ ℝ |
lttrii.1 | ⊢ 𝐴 < 𝐵 |
lttrii.2 | ⊢ 𝐵 < 𝐶 |
Ref | Expression |
---|---|
lttrii | ⊢ 𝐴 < 𝐶 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lttrii.1 | . 2 ⊢ 𝐴 < 𝐵 | |
2 | lttrii.2 | . 2 ⊢ 𝐵 < 𝐶 | |
3 | lttrii.a | . . 3 ⊢ 𝐴 ∈ ℝ | |
4 | lttrii.b | . . 3 ⊢ 𝐵 ∈ ℝ | |
5 | lttrii.c | . . 3 ⊢ 𝐶 ∈ ℝ | |
6 | 3, 4, 5 | lttri 11378 | . 2 ⊢ ((𝐴 < 𝐵 ∧ 𝐵 < 𝐶) → 𝐴 < 𝐶) |
7 | 1, 2, 6 | mp2an 691 | 1 ⊢ 𝐴 < 𝐶 |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2104 class class class wbr 5149 ℝcr 11145 < clt 11286 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1963 ax-7 2003 ax-8 2106 ax-9 2114 ax-10 2137 ax-11 2153 ax-12 2173 ax-ext 2704 ax-sep 5300 ax-nul 5307 ax-pow 5366 ax-pr 5430 ax-un 7747 ax-resscn 11203 ax-pre-lttrn 11221 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3an 1087 df-tru 1538 df-fal 1548 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2536 df-eu 2565 df-clab 2711 df-cleq 2725 df-clel 2812 df-nfc 2888 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-rab 3433 df-v 3479 df-sbc 3792 df-csb 3909 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-nul 4340 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-op 4637 df-uni 4915 df-br 5150 df-opab 5212 df-mpt 5233 df-id 5576 df-xp 5689 df-rel 5690 df-cnv 5691 df-co 5692 df-dm 5693 df-rn 5694 df-res 5695 df-ima 5696 df-iota 6510 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-er 8738 df-en 8979 df-dom 8980 df-sdom 8981 df-pnf 11288 df-mnf 11289 df-ltxr 11291 |
This theorem is referenced by: asin1half 42324 |
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