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| Mirrors > Home > MPE Home > Th. List > Mathboxes > iccgelbd | Structured version Visualization version GIF version | ||
| Description: An element of a closed interval is more than or equal to its lower bound. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| iccgelbd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| iccgelbd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
| iccgelbd.3 | ⊢ (𝜑 → 𝐶 ∈ (𝐴[,]𝐵)) |
| Ref | Expression |
|---|---|
| iccgelbd | ⊢ (𝜑 → 𝐴 ≤ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iccgelbd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 2 | iccgelbd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
| 3 | iccgelbd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ (𝐴[,]𝐵)) | |
| 4 | iccgelb 13457 | . 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 2145 class class class wbr 5107 (class class class)co 7416 ℝ*cxr 11269 ≤ cle 11271 [,]cicc 13403 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-pr 5402 ax-un 7739 ax-cnex 11183 ax-resscn 11184 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-sbc 3743 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-id 5554 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-iota 6493 df-fun 6539 df-fv 6545 df-ov 7419 df-oprab 7420 df-mpo 7421 df-xr 11274 df-icc 13407 |
| This theorem is used by: sqrlearg 46370 |
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