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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 12990 | . . 3 ⊢ ℝ* ∈ V | |
| 2 | 1, 1 | xpex 7738 | . 2 ⊢ (ℝ* × ℝ*) ∈ V |
| 3 | lerelxr 11247 | . 2 ⊢ ≤ ⊆ (ℝ* × ℝ*) | |
| 4 | 2, 3 | ssexi 5280 | 1 ⊢ ≤ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2144 Vcvv 3456 × cxp 5647 ℝ*cxr 11217 ≤ cle 11219 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 ax-sep 5248 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-cnex 11131 ax-resscn 11132 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-ral 3079 df-rex 3089 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-opab 5165 df-xp 5655 df-rel 5656 df-xr 11222 df-le 11224 |
| This theorem is referenced by: (None) |
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