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Mirrors > Home > MPE Home > Th. List > ltlecasei | Structured version Visualization version GIF version |
Description: Ordering elimination by cases. (Contributed by NM, 1-Jul-2007.) (Proof shortened by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
ltlecasei.1 | ⊢ ((𝜑 ∧ 𝐴 < 𝐵) → 𝜓) |
ltlecasei.2 | ⊢ ((𝜑 ∧ 𝐵 ≤ 𝐴) → 𝜓) |
ltlecasei.3 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltlecasei.4 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
Ref | Expression |
---|---|
ltlecasei | ⊢ (𝜑 → 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltlecasei.2 | . 2 ⊢ ((𝜑 ∧ 𝐵 ≤ 𝐴) → 𝜓) | |
2 | ltlecasei.1 | . 2 ⊢ ((𝜑 ∧ 𝐴 < 𝐵) → 𝜓) | |
3 | ltlecasei.4 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
4 | ltlecasei.3 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
5 | lelttric 10818 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) | |
6 | 3, 4, 5 | syl2anc 587 | . 2 ⊢ (𝜑 → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) |
7 | 1, 2, 6 | mpjaodan 958 | 1 ⊢ (𝜑 → 𝜓) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∨ wo 846 ∈ wcel 2113 class class class wbr 5027 ℝcr 10607 < clt 10746 ≤ cle 10747 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1916 ax-6 1974 ax-7 2019 ax-8 2115 ax-9 2123 ax-ext 2710 ax-sep 5164 ax-nul 5171 ax-pr 5293 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-sb 2074 df-clab 2717 df-cleq 2730 df-clel 2811 df-ral 3058 df-rex 3059 df-v 3399 df-dif 3844 df-un 3846 df-in 3848 df-ss 3858 df-nul 4210 df-if 4412 df-sn 4514 df-pr 4516 df-op 4520 df-br 5028 df-opab 5090 df-xp 5525 df-cnv 5527 df-xr 10750 df-le 10752 |
This theorem is referenced by: iccsplit 12952 expnbnd 13678 hashf1 13902 absmax 14772 sinltx 15627 iccntr 23566 pmltpclem2 24194 cniccbdd 24206 iccvolcl 24312 ioovolcl 24315 dyaddisjlem 24340 mbfposr 24397 itg1ge0a 24456 itg2monolem1 24495 itgioo 24560 c1lip1 24741 plyeq0lem 24951 aalioulem5 25076 pserulm 25161 tanord 25274 birthdaylem3 25683 fsumharmonic 25741 chpo1ubb 26209 mblfinlem2 35427 metakunt9 39713 ioodvbdlimc1 43000 ioodvbdlimc2 43002 ibliooicc 43038 fourierdlem107 43280 |
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