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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 13017 | . . 3 ⊢ ℝ* ∈ V | |
| 2 | 1, 1 | xpex 7750 | . 2 ⊢ (ℝ* × ℝ*) ∈ V |
| 3 | ltrelxr 11276 | . 2 ⊢ < ⊆ (ℝ* × ℝ*) | |
| 4 | 2, 3 | ssexi 5292 | 1 ⊢ < ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2142 Vcvv 3454 × cxp 5658 ℝ*cxr 11248 < clt 11249 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5256 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-opab 5173 df-xp 5666 df-rel 5667 df-xr 11253 df-ltxr 11254 |
| This theorem is used by: (None) |
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