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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ltex | Structured version Visualization version GIF version | ||
| Description: The less-than relation is a set. (Contributed by SN, 5-Jun-2025.) |
| Ref | Expression |
|---|---|
| ltex | ⊢ < ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrex 13139 | . . 3 ⊢ ℝ* ∈ V | |
| 2 | 1, 1 | xpex 7788 | . 2 ⊢ (ℝ* × ℝ*) ∈ V |
| 3 | ltrelxr 11394 | . 2 ⊢ < ⊆ (ℝ* × ℝ*) | |
| 4 | 2, 3 | ssexi 5288 | 1 ⊢ < ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 Vcvv 3454 × cxp 5653 ℝ*cxr 11366 < clt 11367 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5252 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-cnex 11280 ax-resscn 11281 |
| 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-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-opab 5171 df-xp 5661 df-rel 5662 df-xr 11371 df-ltxr 11372 |
| This theorem is used by: (None) |
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