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Mathbox for Glauco Siliprandi |
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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 45355 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴(,]𝐵)) → 𝐴 < 𝐶) | |
5 | 1, 2, 3, 4 | syl3anc 1371 | 1 ⊢ (𝜑 → 𝐴 < 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2103 class class class wbr 5169 (class class class)co 7445 ℝ*cxr 11319 < clt 11320 (,]cioc 13404 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2105 ax-9 2113 ax-10 2136 ax-11 2153 ax-12 2173 ax-ext 2705 ax-sep 5320 ax-nul 5327 ax-pr 5450 ax-un 7766 ax-cnex 11236 ax-resscn 11237 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2890 df-ral 3064 df-rex 3073 df-rab 3439 df-v 3484 df-sbc 3799 df-dif 3973 df-un 3975 df-in 3977 df-ss 3987 df-nul 4348 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-br 5170 df-opab 5232 df-id 5597 df-xp 5705 df-rel 5706 df-cnv 5707 df-co 5708 df-dm 5709 df-iota 6524 df-fun 6574 df-fv 6580 df-ov 7448 df-oprab 7449 df-mpo 7450 df-xr 11324 df-ioc 13408 |
This theorem is referenced by: xlimpnfvlem1 45692 |
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