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Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-0lt1 | Structured version Visualization version GIF version |
Description: 0lt1 11162 without ax-mulcom 10601. (Contributed by SN, 13-Feb-2024.) |
Ref | Expression |
---|---|
sn-0lt1 | ⊢ 0 < 1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1ne0 10606 | . . 3 ⊢ 1 ≠ 0 | |
2 | 1re 10641 | . . . 4 ⊢ 1 ∈ ℝ | |
3 | 0re 10643 | . . . 4 ⊢ 0 ∈ ℝ | |
4 | 2, 3 | lttri2i 10754 | . . 3 ⊢ (1 ≠ 0 ↔ (1 < 0 ∨ 0 < 1)) |
5 | 1, 4 | mpbi 232 | . 2 ⊢ (1 < 0 ∨ 0 < 1) |
6 | rernegcl 39250 | . . . . . . 7 ⊢ (1 ∈ ℝ → (0 −ℝ 1) ∈ ℝ) | |
7 | 2, 6 | ax-mp 5 | . . . . . 6 ⊢ (0 −ℝ 1) ∈ ℝ |
8 | 7 | a1i 11 | . . . . 5 ⊢ (1 < 0 → (0 −ℝ 1) ∈ ℝ) |
9 | relt0neg1 39293 | . . . . . . 7 ⊢ (1 ∈ ℝ → (1 < 0 ↔ 0 < (0 −ℝ 1))) | |
10 | 2, 9 | ax-mp 5 | . . . . . 6 ⊢ (1 < 0 ↔ 0 < (0 −ℝ 1)) |
11 | 10 | biimpi 218 | . . . . 5 ⊢ (1 < 0 → 0 < (0 −ℝ 1)) |
12 | 8, 8, 11, 11 | mulgt0d 10795 | . . . 4 ⊢ (1 < 0 → 0 < ((0 −ℝ 1) · (0 −ℝ 1))) |
13 | resubdi 39275 | . . . . . 6 ⊢ (((0 −ℝ 1) ∈ ℝ ∧ 0 ∈ ℝ ∧ 1 ∈ ℝ) → ((0 −ℝ 1) · (0 −ℝ 1)) = (((0 −ℝ 1) · 0) −ℝ ((0 −ℝ 1) · 1))) | |
14 | 7, 3, 2, 13 | mp3an 1457 | . . . . 5 ⊢ ((0 −ℝ 1) · (0 −ℝ 1)) = (((0 −ℝ 1) · 0) −ℝ ((0 −ℝ 1) · 1)) |
15 | remul01 39286 | . . . . . . 7 ⊢ ((0 −ℝ 1) ∈ ℝ → ((0 −ℝ 1) · 0) = 0) | |
16 | 7, 15 | ax-mp 5 | . . . . . 6 ⊢ ((0 −ℝ 1) · 0) = 0 |
17 | ax-1rid 10607 | . . . . . . 7 ⊢ ((0 −ℝ 1) ∈ ℝ → ((0 −ℝ 1) · 1) = (0 −ℝ 1)) | |
18 | 7, 17 | ax-mp 5 | . . . . . 6 ⊢ ((0 −ℝ 1) · 1) = (0 −ℝ 1) |
19 | 16, 18 | oveq12i 7168 | . . . . 5 ⊢ (((0 −ℝ 1) · 0) −ℝ ((0 −ℝ 1) · 1)) = (0 −ℝ (0 −ℝ 1)) |
20 | renegneg 39290 | . . . . . 6 ⊢ (1 ∈ ℝ → (0 −ℝ (0 −ℝ 1)) = 1) | |
21 | 2, 20 | ax-mp 5 | . . . . 5 ⊢ (0 −ℝ (0 −ℝ 1)) = 1 |
22 | 14, 19, 21 | 3eqtri 2848 | . . . 4 ⊢ ((0 −ℝ 1) · (0 −ℝ 1)) = 1 |
23 | 12, 22 | breqtrdi 5107 | . . 3 ⊢ (1 < 0 → 0 < 1) |
24 | id 22 | . . 3 ⊢ (0 < 1 → 0 < 1) | |
25 | 23, 24 | jaoi 853 | . 2 ⊢ ((1 < 0 ∨ 0 < 1) → 0 < 1) |
26 | 5, 25 | ax-mp 5 | 1 ⊢ 0 < 1 |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∨ wo 843 = wceq 1537 ∈ wcel 2114 ≠ wne 3016 class class class wbr 5066 (class class class)co 7156 ℝcr 10536 0cc0 10537 1c1 10538 · cmul 10542 < clt 10675 −ℝ cresub 39244 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-po 5474 df-so 5475 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-ltxr 10680 df-2 11701 df-3 11702 df-resub 39245 |
This theorem is referenced by: sn-ltp1 39296 |
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