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| Mirrors > Home > MPE Home > Th. List > Mathboxes > leex | Structured version Visualization version GIF version | ||
| Description: The less-than-or-equal-to relation is a set. (Contributed by SN, 5-Jun-2025.) |
| Ref | Expression |
|---|---|
| leex | ⊢ ≤ ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrex 13014 | . . 3 ⊢ ℝ* ∈ V | |
| 2 | 1, 1 | xpex 7755 | . 2 ⊢ (ℝ* × ℝ*) ∈ V |
| 3 | lerelxr 11275 | . 2 ⊢ ≤ ⊆ (ℝ* × ℝ*) | |
| 4 | 2, 3 | ssexi 5296 | 1 ⊢ ≤ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2150 Vcvv 3462 × cxp 5663 ℝ*cxr 11245 ≤ cle 11247 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-ext 2742 ax-sep 5262 ax-pow 5340 ax-pr 5408 ax-un 7736 ax-cnex 11159 ax-resscn 11160 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-sb 2099 df-clab 2749 df-cleq 2762 df-clel 2845 df-ral 3087 df-rex 3097 df-rab 3424 df-v 3464 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 4878 df-opab 5179 df-xp 5671 df-rel 5672 df-xr 11250 df-le 11252 |
| This theorem is referenced by: (None) |
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