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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 11421 | . . 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 2144 class class class wbr 5102 ℝcr 11203 < clt 11347 ≤ cle 11348 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-br 5103 df-opab 5167 df-xp 5656 df-cnv 5658 df-xr 11351 df-le 11353 |
| This theorem is used by: iccsplit 13620 expnbnd 14380 hashf1 14606 absmax 15503 sinltx 16363 iccntr 25147 pmltpclem2 25776 cniccbdd 25788 iccvolcl 25894 ioovolcl 25897 dyaddisjlem 25922 mbfposr 25979 itg1ge0a 26038 itg2monolem1 26077 itgioo 26142 c1lip1 26323 plyeq0lem 26535 aalioulem5 26669 pserulm 26755 tanord 26872 birthdaylem3 27287 fsumharmonic 27345 chpo1ubb 27814 cos9thpiminplylem1 34461 mblfinlem2 38670 ioodvbdlimc1 47037 ioodvbdlimc2 47039 ibliooicc 47075 fourierdlem107 47317 |
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