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Mirrors > Home > MPE Home > Th. List > letri3d | Structured version Visualization version GIF version |
Description: Consequence of trichotomy. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
Ref | Expression |
---|---|
letri3d | ⊢ (𝜑 → (𝐴 = 𝐵 ↔ (𝐴 ≤ 𝐵 ∧ 𝐵 ≤ 𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
2 | ltd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
3 | letri3 10883 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 = 𝐵 ↔ (𝐴 ≤ 𝐵 ∧ 𝐵 ≤ 𝐴))) | |
4 | 1, 2, 3 | syl2anc 587 | 1 ⊢ (𝜑 → (𝐴 = 𝐵 ↔ (𝐴 ≤ 𝐵 ∧ 𝐵 ≤ 𝐴))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∈ wcel 2112 class class class wbr 5039 ℝcr 10693 ≤ cle 10833 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-resscn 10751 ax-pre-lttri 10768 ax-pre-lttrn 10769 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-op 4534 df-uni 4806 df-br 5040 df-opab 5102 df-mpt 5121 df-id 5440 df-po 5453 df-so 5454 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-er 8369 df-en 8605 df-dom 8606 df-sdom 8607 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 |
This theorem is referenced by: add20 11309 eqord1 11325 msq11 11698 supadd 11765 supmul 11769 suprzcl 12222 uzwo3 12504 flid 13348 flval3 13355 gcd0id 16041 gcdneg 16044 bezoutlem4 16065 gcdzeq 16077 lcmneg 16123 coprmgcdb 16169 qredeq 16177 pcidlem 16388 pcgcd1 16393 4sqlem17 16477 0ram 16536 ram0 16538 mndodconglem 18887 sylow1lem5 18945 zntoslem 20475 cnmpopc 23779 ovolsca 24366 ismbl2 24378 voliunlem2 24402 dyadmaxlem 24448 mbfi1fseqlem4 24570 itg2cnlem1 24613 ditgneg 24708 rolle 24841 dvivthlem1 24859 plyeq0lem 25058 dgreq 25092 coemulhi 25102 dgradd2 25116 dgrmul 25118 plydiveu 25145 vieta1lem2 25158 pilem3 25299 zabsle1 26131 2sqmod 26271 ostth2 26472 brbtwn2 26950 axcontlem8 27016 nmophmi 30066 leoptri 30171 fzto1st1 31042 ballotlemfc0 32125 ballotlemfcc 32126 0nn0m1nnn0 32738 poimirlem23 35486 rmspecfund 40375 ubelsupr 42177 lefldiveq 42445 wallispilem3 43226 fourierdlem6 43272 fourierdlem42 43308 fourierdlem50 43315 fourierdlem52 43317 fourierdlem54 43319 fourierdlem79 43344 fourierdlem102 43367 fourierdlem114 43379 2ffzoeq 44436 lighneallem2 44674 |
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