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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-suprubd | Structured version Visualization version GIF version | ||
| Description: suprubd 12176 without ax-mulcom 11163, proven trivially from sn-suprcld 43156. (Contributed by SN, 29-Jun-2025.) |
| Ref | Expression |
|---|---|
| sn-sup3d.1 | ⊢ (𝜑 → 𝐴 ⊆ ℝ) |
| sn-sup3d.2 | ⊢ (𝜑 → 𝐴 ≠ ∅) |
| sn-sup3d.3 | ⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑦 ∈ 𝐴 𝑦 ≤ 𝑥) |
| sn-suprubd.4 | ⊢ (𝜑 → 𝐵 ∈ 𝐴) |
| Ref | Expression |
|---|---|
| sn-suprubd | ⊢ (𝜑 → 𝐵 ≤ sup(𝐴, ℝ, < )) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sn-sup3d.1 | . . 3 ⊢ (𝜑 → 𝐴 ⊆ ℝ) | |
| 2 | sn-suprubd.4 | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝐴) | |
| 3 | 1, 2 | sseldd 3946 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| 4 | sn-sup3d.2 | . . 3 ⊢ (𝜑 → 𝐴 ≠ ∅) | |
| 5 | sn-sup3d.3 | . . 3 ⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑦 ∈ 𝐴 𝑦 ≤ 𝑥) | |
| 6 | 1, 4, 5 | sn-suprcld 43156 | . 2 ⊢ (𝜑 → sup(𝐴, ℝ, < ) ∈ ℝ) |
| 7 | ltso 11289 | . . . . 5 ⊢ < Or ℝ | |
| 8 | 7 | a1i 11 | . . . 4 ⊢ (𝜑 → < Or ℝ) |
| 9 | 1, 4, 5 | sn-sup3d 43155 | . . . 4 ⊢ (𝜑 → ∃𝑥 ∈ ℝ (∀𝑦 ∈ 𝐴 ¬ 𝑥 < 𝑦 ∧ ∀𝑦 ∈ ℝ (𝑦 < 𝑥 → ∃𝑧 ∈ 𝐴 𝑦 < 𝑧))) |
| 10 | 8, 9 | supub 9418 | . . 3 ⊢ (𝜑 → (𝐵 ∈ 𝐴 → ¬ sup(𝐴, ℝ, < ) < 𝐵)) |
| 11 | 2, 10 | mpd 16 | . 2 ⊢ (𝜑 → ¬ sup(𝐴, ℝ, < ) < 𝐵) |
| 12 | 3, 6, 11 | nltled 11359 | 1 ⊢ (𝜑 → 𝐵 ≤ sup(𝐴, ℝ, < )) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∈ wcel 2149 ≠ wne 2964 ∀wral 3085 ∃wrex 3095 ⊆ wss 3913 ∅c0 4294 class class class wbr 5113 Or wor 5569 supcsup 9399 ℝcr 11098 < clt 11242 ≤ cle 11243 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-resscn 11156 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-mulrcl 11162 ax-addass 11164 ax-mulass 11165 ax-distr 11166 ax-i2m1 11167 ax-1ne0 11168 ax-1rid 11169 ax-rnegex 11170 ax-rrecex 11171 ax-cnre 11172 ax-pre-lttri 11173 ax-pre-lttrn 11174 ax-pre-ltadd 11175 ax-pre-mulgt0 11176 ax-pre-sup 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-po 5570 df-so 5571 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-er 8693 df-en 8943 df-dom 8944 df-sdom 8945 df-sup 9401 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-2 12302 df-3 12303 df-resub 43016 |
| This theorem is referenced by: (None) |
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