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| Mirrors > Home > MPE Home > Th. List > Mathboxes > iocgtlbd | Structured version Visualization version GIF version | ||
| Description: An element of a left-open right-closed interval is larger than its lower bound. (Contributed by Glauco Siliprandi, 5-Feb-2022.) |
| Ref | Expression |
|---|---|
| iocgtlbd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| iocgtlbd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
| iocgtlbd.3 | ⊢ (𝜑 → 𝐶 ∈ (𝐴(,]𝐵)) |
| Ref | Expression |
|---|---|
| iocgtlbd | ⊢ (𝜑 → 𝐴 < 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iocgtlbd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 2 | iocgtlbd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
| 3 | iocgtlbd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ (𝐴(,]𝐵)) | |
| 4 | iocgtlb 46656 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴(,]𝐵)) → 𝐴 < 𝐶) | |
| 5 | 1, 2, 3, 4 | syl3anc 1398 | 1 ⊢ (𝜑 → 𝐴 < 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 class class class wbr 5106 (class class class)co 7430 ℝ*cxr 11355 < clt 11356 (,]cioc 13490 |
| 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 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5252 ax-pr 5395 ax-un 7761 ax-cnex 11269 ax-resscn 11270 |
| 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-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-iota 6501 df-fun 6549 df-fv 6555 df-ov 7433 df-oprab 7434 df-mpo 7435 df-xr 11360 df-ioc 13494 |
| This theorem is used by: xlimpnfvlem1 46988 fourierdlem48 47306 fourierdlem49 47307 |
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