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Mirrors > Home > MPE Home > Th. List > Mathboxes > iocleubd | Structured version Visualization version GIF version |
Description: An element of a left-open right-closed interval is smaller than or equal to its upper bound. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
Ref | Expression |
---|---|
iocleubd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
iocleubd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
iocleubd.3 | ⊢ (𝜑 → 𝐶 ∈ (𝐴(,]𝐵)) |
Ref | Expression |
---|---|
iocleubd | ⊢ (𝜑 → 𝐶 ≤ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iocleubd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
2 | iocleubd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
3 | iocleubd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ (𝐴(,]𝐵)) | |
4 | iocleub 42931 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴(,]𝐵)) → 𝐶 ≤ 𝐵) | |
5 | 1, 2, 3, 4 | syl3anc 1369 | 1 ⊢ (𝜑 → 𝐶 ≤ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2108 class class class wbr 5070 (class class class)co 7255 ℝ*cxr 10939 ≤ cle 10941 (,]cioc 13009 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-sbc 3712 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-iota 6376 df-fun 6420 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-xr 10944 df-ioc 13013 |
This theorem is referenced by: preimaiocmnf 42989 smfsuplem1 44231 |
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