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Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-0lt1 | Structured version Visualization version GIF version |
Description: 0lt1 11740 without ax-mulcom 11176. (Contributed by SN, 13-Feb-2024.) |
Ref | Expression |
---|---|
sn-0lt1 | ⊢ 0 < 1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1ne0 11181 | . . 3 ⊢ 1 ≠ 0 | |
2 | 1re 11218 | . . . 4 ⊢ 1 ∈ ℝ | |
3 | 0re 11220 | . . . 4 ⊢ 0 ∈ ℝ | |
4 | 2, 3 | lttri2i 11332 | . . 3 ⊢ (1 ≠ 0 ↔ (1 < 0 ∨ 0 < 1)) |
5 | 1, 4 | mpbi 229 | . 2 ⊢ (1 < 0 ∨ 0 < 1) |
6 | rernegcl 41546 | . . . . . 6 ⊢ (1 ∈ ℝ → (0 −ℝ 1) ∈ ℝ) | |
7 | 2, 6 | mp1i 13 | . . . . 5 ⊢ (1 < 0 → (0 −ℝ 1) ∈ ℝ) |
8 | relt0neg1 41619 | . . . . . . 7 ⊢ (1 ∈ ℝ → (1 < 0 ↔ 0 < (0 −ℝ 1))) | |
9 | 2, 8 | ax-mp 5 | . . . . . 6 ⊢ (1 < 0 ↔ 0 < (0 −ℝ 1)) |
10 | 9 | biimpi 215 | . . . . 5 ⊢ (1 < 0 → 0 < (0 −ℝ 1)) |
11 | 7, 7, 10, 10 | mulgt0d 11373 | . . . 4 ⊢ (1 < 0 → 0 < ((0 −ℝ 1) · (0 −ℝ 1))) |
12 | 1red 11219 | . . . . . . 7 ⊢ (1 ∈ ℝ → 1 ∈ ℝ) | |
13 | 6, 12 | remulneg2d 41589 | . . . . . 6 ⊢ (1 ∈ ℝ → ((0 −ℝ 1) · (0 −ℝ 1)) = (0 −ℝ ((0 −ℝ 1) · 1))) |
14 | ax-1rid 11182 | . . . . . . . 8 ⊢ ((0 −ℝ 1) ∈ ℝ → ((0 −ℝ 1) · 1) = (0 −ℝ 1)) | |
15 | 6, 14 | syl 17 | . . . . . . 7 ⊢ (1 ∈ ℝ → ((0 −ℝ 1) · 1) = (0 −ℝ 1)) |
16 | 15 | oveq2d 7427 | . . . . . 6 ⊢ (1 ∈ ℝ → (0 −ℝ ((0 −ℝ 1) · 1)) = (0 −ℝ (0 −ℝ 1))) |
17 | renegneg 41586 | . . . . . 6 ⊢ (1 ∈ ℝ → (0 −ℝ (0 −ℝ 1)) = 1) | |
18 | 13, 16, 17 | 3eqtrd 2774 | . . . . 5 ⊢ (1 ∈ ℝ → ((0 −ℝ 1) · (0 −ℝ 1)) = 1) |
19 | 2, 18 | ax-mp 5 | . . . 4 ⊢ ((0 −ℝ 1) · (0 −ℝ 1)) = 1 |
20 | 11, 19 | breqtrdi 5188 | . . 3 ⊢ (1 < 0 → 0 < 1) |
21 | id 22 | . . 3 ⊢ (0 < 1 → 0 < 1) | |
22 | 20, 21 | jaoi 853 | . 2 ⊢ ((1 < 0 ∨ 0 < 1) → 0 < 1) |
23 | 5, 22 | ax-mp 5 | 1 ⊢ 0 < 1 |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∨ wo 843 = wceq 1539 ∈ wcel 2104 ≠ wne 2938 class class class wbr 5147 (class class class)co 7411 ℝcr 11111 0cc0 11112 1c1 11113 · cmul 11117 < clt 11252 −ℝ cresub 41540 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2701 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7727 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2532 df-eu 2561 df-clab 2708 df-cleq 2722 df-clel 2808 df-nfc 2883 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3474 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-br 5148 df-opab 5210 df-mpt 5231 df-id 5573 df-po 5587 df-so 5588 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11254 df-mnf 11255 df-ltxr 11257 df-2 12279 df-3 12280 df-resub 41541 |
This theorem is referenced by: sn-ltp1 41638 reneg1lt0 41639 |
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