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| Mirrors > Home > MPE Home > Th. List > Mathboxes > eliccnelico | Structured version Visualization version GIF version | ||
| Description: An element of a closed interval that is not a member of the left-closed right-open interval, must be the upper bound. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| eliccnelico.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| eliccnelico.b | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
| eliccnelico.c | ⊢ (𝜑 → 𝐶 ∈ (𝐴[,]𝐵)) |
| eliccnelico.nel | ⊢ (𝜑 → ¬ 𝐶 ∈ (𝐴[,)𝐵)) |
| Ref | Expression |
|---|---|
| eliccnelico | ⊢ (𝜑 → 𝐶 = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eliccnelico.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ (𝐴[,]𝐵)) | |
| 2 | eliccxr 13465 | . . 3 ⊢ (𝐶 ∈ (𝐴[,]𝐵) → 𝐶 ∈ ℝ*) | |
| 3 | 1, 2 | syl 18 | . 2 ⊢ (𝜑 → 𝐶 ∈ ℝ*) |
| 4 | eliccnelico.b | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
| 5 | eliccnelico.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 6 | iccleub 13431 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴[,]𝐵)) → 𝐶 ≤ 𝐵) | |
| 7 | 5, 4, 1, 6 | syl3anc 1396 | . 2 ⊢ (𝜑 → 𝐶 ≤ 𝐵) |
| 8 | 5 | adantr 485 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐴 ∈ ℝ*) |
| 9 | 4 | adantr 485 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℝ*) |
| 10 | 3 | adantr 485 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℝ*) |
| 11 | iccgelb 13432 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴[,]𝐵)) → 𝐴 ≤ 𝐶) | |
| 12 | 5, 4, 1, 11 | syl3anc 1396 | . . . . 5 ⊢ (𝜑 → 𝐴 ≤ 𝐶) |
| 13 | 12 | adantr 485 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐴 ≤ 𝐶) |
| 14 | simpr 489 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → ¬ 𝐵 ≤ 𝐶) | |
| 15 | xrltnle 11279 | . . . . . . 7 ⊢ ((𝐶 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐶)) | |
| 16 | 3, 4, 15 | syl2anc 595 | . . . . . 6 ⊢ (𝜑 → (𝐶 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐶)) |
| 17 | 16 | adantr 485 | . . . . 5 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → (𝐶 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐶)) |
| 18 | 14, 17 | mpbird 260 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐶 < 𝐵) |
| 19 | 8, 9, 10, 13, 18 | elicod 13425 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → 𝐶 ∈ (𝐴[,)𝐵)) |
| 20 | eliccnelico.nel | . . . 4 ⊢ (𝜑 → ¬ 𝐶 ∈ (𝐴[,)𝐵)) | |
| 21 | 20 | adantr 485 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐵 ≤ 𝐶) → ¬ 𝐶 ∈ (𝐴[,)𝐵)) |
| 22 | 19, 21 | condan 829 | . 2 ⊢ (𝜑 → 𝐵 ≤ 𝐶) |
| 23 | 3, 4, 7, 22 | xrletrid 13183 | 1 ⊢ (𝜑 → 𝐶 = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1568 ∈ wcel 2150 class class class wbr 5114 (class class class)co 7414 ℝ*cxr 11245 < clt 11246 ≤ cle 11247 [,)cico 13377 [,]cicc 13378 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-cnex 11159 ax-resscn 11160 ax-pre-lttri 11177 ax-pre-lttrn 11178 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-nel 3072 df-ral 3087 df-rex 3097 df-rab 3424 df-v 3464 df-sbc 3753 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5560 df-po 5573 df-so 5574 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7417 df-oprab 7418 df-mpo 7419 df-1st 7989 df-2nd 7990 df-er 8697 df-en 8947 df-dom 8948 df-sdom 8949 df-pnf 11248 df-mnf 11249 df-xr 11250 df-ltxr 11251 df-le 11252 df-ico 13381 df-icc 13382 |
| This theorem is referenced by: sge0f1o 47048 |
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