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Mirrors > Home > MPE Home > Th. List > ltsopr | Structured version Visualization version GIF version |
Description: Positive real 'less than' is a strict ordering. Part of Proposition 9-3.3 of [Gleason] p. 122. (Contributed by NM, 25-Feb-1996.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ltsopr | ⊢ <P Or P |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pssirr 4101 | . . . 4 ⊢ ¬ 𝑥 ⊊ 𝑥 | |
2 | ltprord 11025 | . . . 4 ⊢ ((𝑥 ∈ P ∧ 𝑥 ∈ P) → (𝑥<P 𝑥 ↔ 𝑥 ⊊ 𝑥)) | |
3 | 1, 2 | mtbiri 327 | . . 3 ⊢ ((𝑥 ∈ P ∧ 𝑥 ∈ P) → ¬ 𝑥<P 𝑥) |
4 | 3 | anidms 568 | . 2 ⊢ (𝑥 ∈ P → ¬ 𝑥<P 𝑥) |
5 | psstr 4105 | . . 3 ⊢ ((𝑥 ⊊ 𝑦 ∧ 𝑦 ⊊ 𝑧) → 𝑥 ⊊ 𝑧) | |
6 | ltprord 11025 | . . . . . 6 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → (𝑥<P 𝑦 ↔ 𝑥 ⊊ 𝑦)) | |
7 | 6 | 3adant3 1133 | . . . . 5 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → (𝑥<P 𝑦 ↔ 𝑥 ⊊ 𝑦)) |
8 | ltprord 11025 | . . . . . 6 ⊢ ((𝑦 ∈ P ∧ 𝑧 ∈ P) → (𝑦<P 𝑧 ↔ 𝑦 ⊊ 𝑧)) | |
9 | 8 | 3adant1 1131 | . . . . 5 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → (𝑦<P 𝑧 ↔ 𝑦 ⊊ 𝑧)) |
10 | 7, 9 | anbi12d 632 | . . . 4 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → ((𝑥<P 𝑦 ∧ 𝑦<P 𝑧) ↔ (𝑥 ⊊ 𝑦 ∧ 𝑦 ⊊ 𝑧))) |
11 | ltprord 11025 | . . . . 5 ⊢ ((𝑥 ∈ P ∧ 𝑧 ∈ P) → (𝑥<P 𝑧 ↔ 𝑥 ⊊ 𝑧)) | |
12 | 11 | 3adant2 1132 | . . . 4 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → (𝑥<P 𝑧 ↔ 𝑥 ⊊ 𝑧)) |
13 | 10, 12 | imbi12d 345 | . . 3 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → (((𝑥<P 𝑦 ∧ 𝑦<P 𝑧) → 𝑥<P 𝑧) ↔ ((𝑥 ⊊ 𝑦 ∧ 𝑦 ⊊ 𝑧) → 𝑥 ⊊ 𝑧))) |
14 | 5, 13 | mpbiri 258 | . 2 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P ∧ 𝑧 ∈ P) → ((𝑥<P 𝑦 ∧ 𝑦<P 𝑧) → 𝑥<P 𝑧)) |
15 | psslinpr 11026 | . . 3 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → (𝑥 ⊊ 𝑦 ∨ 𝑥 = 𝑦 ∨ 𝑦 ⊊ 𝑥)) | |
16 | biidd 262 | . . . 4 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → (𝑥 = 𝑦 ↔ 𝑥 = 𝑦)) | |
17 | ltprord 11025 | . . . . 5 ⊢ ((𝑦 ∈ P ∧ 𝑥 ∈ P) → (𝑦<P 𝑥 ↔ 𝑦 ⊊ 𝑥)) | |
18 | 17 | ancoms 460 | . . . 4 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → (𝑦<P 𝑥 ↔ 𝑦 ⊊ 𝑥)) |
19 | 6, 16, 18 | 3orbi123d 1436 | . . 3 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → ((𝑥<P 𝑦 ∨ 𝑥 = 𝑦 ∨ 𝑦<P 𝑥) ↔ (𝑥 ⊊ 𝑦 ∨ 𝑥 = 𝑦 ∨ 𝑦 ⊊ 𝑥))) |
20 | 15, 19 | mpbird 257 | . 2 ⊢ ((𝑥 ∈ P ∧ 𝑦 ∈ P) → (𝑥<P 𝑦 ∨ 𝑥 = 𝑦 ∨ 𝑦<P 𝑥)) |
21 | 4, 14, 20 | issoi 5623 | 1 ⊢ <P Or P |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 397 ∨ w3o 1087 ∧ w3a 1088 ∈ wcel 2107 ⊊ wpss 3950 class class class wbr 5149 Or wor 5588 Pcnp 10854 <P cltp 10858 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5300 ax-nul 5307 ax-pr 5428 ax-un 7725 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-1st 7975 df-2nd 7976 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-oadd 8470 df-omul 8471 df-er 8703 df-ni 10867 df-mi 10869 df-lti 10870 df-ltpq 10905 df-enq 10906 df-nq 10907 df-ltnq 10913 df-np 10976 df-ltp 10980 |
This theorem is referenced by: ltapr 11040 addcanpr 11041 suplem2pr 11048 ltsosr 11089 |
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