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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 12932 | . . 3 ⊢ ℝ* ∈ V | |
| 2 | 1, 1 | xpex 7702 | . 2 ⊢ (ℝ* × ℝ*) ∈ V |
| 3 | lerelxr 11203 | . 2 ⊢ ≤ ⊆ (ℝ* × ℝ*) | |
| 4 | 2, 3 | ssexi 5260 | 1 ⊢ ≤ ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 Vcvv 3430 × cxp 5624 ℝ*cxr 11173 ≤ cle 11175 |
| 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 5232 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-cnex 11089 ax-resscn 11090 |
| 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-uni 4852 df-opab 5149 df-xp 5632 df-rel 5633 df-xr 11178 df-le 11180 |
| This theorem is referenced by: (None) |
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