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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cnvtrucl0 | Structured version Visualization version GIF version | ||
| Description: The converse of the trivial closure is equal to the closure of the converse. (Contributed by RP, 18-Oct-2020.) |
| Ref | Expression |
|---|---|
| cnvtrucl0 | ⊢ (𝑋 ∈ 𝑉 → ◡∩ {𝑥 ∣ (𝑋 ⊆ 𝑥 ∧ ⊤)} = ∩ {𝑦 ∣ (◡𝑋 ⊆ 𝑦 ∧ ⊤)}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | idd 25 | . 2 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑥 = (◡𝑦 ∪ (𝑋 ∖ ◡◡𝑋))) → (⊤ → ⊤)) | |
| 2 | idd 25 | . 2 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑦 = ◡𝑥) → (⊤ → ⊤)) | |
| 3 | biidd 265 | . 2 ⊢ (𝑥 = 𝑋 → (⊤ ↔ ⊤)) | |
| 4 | ssidd 3968 | . 2 ⊢ (𝑋 ∈ 𝑉 → 𝑋 ⊆ 𝑋) | |
| 5 | elex 3483 | . 2 ⊢ (𝑋 ∈ 𝑉 → 𝑋 ∈ V) | |
| 6 | trud 1578 | . 2 ⊢ (𝑋 ∈ 𝑉 → ⊤) | |
| 7 | 1, 2, 3, 4, 5, 6 | clcnvlem 44301 | 1 ⊢ (𝑋 ∈ 𝑉 → ◡∩ {𝑥 ∣ (𝑋 ⊆ 𝑥 ∧ ⊤)} = ∩ {𝑦 ∣ (◡𝑋 ⊆ 𝑦 ∧ ⊤)}) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1568 ⊤wtru 1569 ∈ wcel 2150 {cab 2748 ∖ cdif 3910 ∪ cun 3911 ⊆ wss 3913 ∩ cint 4917 ◡ccnv 5664 |
| 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-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pow 5340 ax-pr 5408 ax-un 7736 |
| 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-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 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-int 4918 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5560 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-iota 6496 df-fun 6542 df-fv 6548 df-1st 7989 df-2nd 7990 |
| This theorem is referenced by: (None) |
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