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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 11284 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) | |
| 6 | 3, 4, 5 | syl2anc 593 | . 2 ⊢ (𝜑 → (𝐵 ≤ 𝐴 ∨ 𝐴 < 𝐵)) |
| 7 | 1, 2, 6 | mpjaodan 971 | 1 ⊢ (𝜑 → 𝜓) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∨ wo 858 ∈ wcel 2141 class class class wbr 5097 ℝcr 11066 < clt 11210 ≤ cle 11211 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 ax-sep 5243 ax-pr 5387 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-sn 4580 df-pr 4582 df-op 4586 df-br 5098 df-opab 5160 df-xp 5649 df-cnv 5651 df-xr 11214 df-le 11216 |
| This theorem is referenced by: iccsplit 13483 expnbnd 14239 hashf1 14464 absmax 15348 sinltx 16212 iccntr 24870 pmltpclem2 25499 cniccbdd 25511 iccvolcl 25617 ioovolcl 25620 dyaddisjlem 25645 mbfposr 25702 itg1ge0a 25761 itg2monolem1 25800 itgioo 25866 c1lip1 26047 plyeq0lem 26258 aalioulem5 26388 pserulm 26473 tanord 26591 birthdaylem3 27006 fsumharmonic 27064 chpo1ubb 27533 cos9thpiminplylem1 34040 mblfinlem2 38118 ioodvbdlimc1 46468 ioodvbdlimc2 46470 ibliooicc 46506 fourierdlem107 46748 |
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