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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 11244 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) | |
| 6 | 3, 4, 5 | syl2anc 585 | . 2 ⊢ (𝜑 → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) |
| 7 | 1, 2, 6 | mpjaodan 961 | 1 ⊢ (𝜑 → 𝜓) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∨ wo 848 ∈ wcel 2114 class class class wbr 5086 ℝcr 11028 < clt 11170 ≤ cle 11171 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-pr 5370 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-xp 5630 df-cnv 5632 df-xr 11174 df-le 11176 |
| This theorem is referenced by: iccsplit 13429 expnbnd 14185 hashf1 14410 absmax 15283 sinltx 16147 iccntr 24797 pmltpclem2 25426 cniccbdd 25438 iccvolcl 25544 ioovolcl 25547 dyaddisjlem 25572 mbfposr 25629 itg1ge0a 25688 itg2monolem1 25727 itgioo 25793 c1lip1 25974 plyeq0lem 26185 aalioulem5 26313 pserulm 26400 tanord 26515 birthdaylem3 26930 fsumharmonic 26989 chpo1ubb 27458 cos9thpiminplylem1 33942 mblfinlem2 37993 ioodvbdlimc1 46379 ioodvbdlimc2 46381 ibliooicc 46417 fourierdlem107 46659 |
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