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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 11341 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) | |
| 6 | 3, 4, 5 | syl2anc 596 | . 2 ⊢ (𝜑 → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) |
| 7 | 1, 2, 6 | mpjaodan 973 | 1 ⊢ (𝜑 → 𝜓) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∨ wo 861 ∈ wcel 2145 class class class wbr 5103 ℝcr 11123 < clt 11267 ≤ cle 11268 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 ax-sep 5251 ax-pr 5398 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-xp 5661 df-cnv 5663 df-xr 11271 df-le 11273 |
| This theorem is used by: iccsplit 13538 expnbnd 14296 hashf1 14522 absmax 15417 sinltx 16277 iccntr 25048 pmltpclem2 25677 cniccbdd 25689 iccvolcl 25795 ioovolcl 25798 dyaddisjlem 25823 mbfposr 25880 itg1ge0a 25939 itg2monolem1 25978 itgioo 26043 c1lip1 26224 plyeq0lem 26436 aalioulem5 26572 pserulm 26658 tanord 26775 birthdaylem3 27190 fsumharmonic 27248 chpo1ubb 27717 cos9thpiminplylem1 34292 mblfinlem2 38407 ioodvbdlimc1 46761 ioodvbdlimc2 46763 ibliooicc 46799 fourierdlem107 47041 |
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