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| Mirrors > Home > MPE Home > Th. List > nulsgtsd | Structured version Visualization version GIF version | ||
| Description: The empty set is greater than any set of surreals. Deduction version. (Contributed by Scott Fenton, 27-Feb-2026.) |
| Ref | Expression |
|---|---|
| nulsltsd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| nulsltsd.2 | ⊢ (𝜑 → 𝐴 ⊆ No ) |
| Ref | Expression |
|---|---|
| nulsgtsd | ⊢ (𝜑 → 𝐴 <<s ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nulsltsd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | nulsltsd.2 | . . 3 ⊢ (𝜑 → 𝐴 ⊆ No ) | |
| 3 | 1, 2 | elpwd 4548 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝒫 No ) |
| 4 | nulsgts 27782 | . 2 ⊢ (𝐴 ∈ 𝒫 No → 𝐴 <<s ∅) | |
| 5 | 3, 4 | syl 17 | 1 ⊢ (𝜑 → 𝐴 <<s ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3890 ∅c0 4274 𝒫 cpw 4542 class class class wbr 5086 No csur 27617 <<s cslts 27763 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-xp 5630 df-slts 27764 |
| This theorem is referenced by: (None) |
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