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| Mirrors > Home > MPE Home > Th. List > Mathboxes > icoltub | Structured version Visualization version GIF version | ||
| Description: An element of a left-closed right-open interval is less than its upper bound. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| icoltub | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴[,)𝐵)) → 𝐶 < 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elico1 13392 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,)𝐵) ↔ (𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 < 𝐵))) | |
| 2 | simp3 1151 | . . 3 ⊢ ((𝐶 ∈ ℝ* ∧ 𝐴 ≤ 𝐶 ∧ 𝐶 < 𝐵) → 𝐶 < 𝐵) | |
| 3 | 1, 2 | biimtrdi 255 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 ∈ (𝐴[,)𝐵) → 𝐶 < 𝐵)) |
| 4 | 3 | 3impia 1130 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ* ∧ 𝐶 ∈ (𝐴[,)𝐵)) → 𝐶 < 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1098 ∈ wcel 2142 class class class wbr 5100 (class class class)co 7396 ℝ*cxr 11215 < clt 11216 ≤ cle 11217 [,)cico 13351 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-pr 5390 ax-un 7718 ax-cnex 11129 ax-resscn 11130 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-sbc 3745 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-iota 6477 df-fun 6523 df-fv 6529 df-ov 7399 df-oprab 7400 df-mpo 7401 df-xr 11220 df-ico 13355 |
| This theorem is referenced by: icoopn 46098 icoub 46099 icoltubd 46118 ltmod 46209 limcresioolb 46214 fourierdlem41 46719 fourierdlem43 46721 fourierdlem46 46723 fouriersw 46802 hoidmv1lelem2 47163 hoidmvlelem2 47167 hspdifhsp 47187 hspmbllem2 47198 iinhoiicclem 47244 preimaicomnf 47282 |
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