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| Mirrors > Home > MPE Home > Th. List > Mathboxes > eltrans | Structured version Visualization version GIF version | ||
| Description: Membership in the class of all transitive sets. (Contributed by Scott Fenton, 31-Mar-2012.) |
| Ref | Expression |
|---|---|
| eltrans.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| eltrans | ⊢ (𝐴 ∈ Trans ↔ Tr 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-trans 36810 | . . 3 ⊢ Trans = (V ∖ ran (( E ∘ E ) ∖ E )) | |
| 2 | 1 | eleq2i 2856 | . 2 ⊢ (𝐴 ∈ Trans ↔ 𝐴 ∈ (V ∖ ran (( E ∘ E ) ∖ E ))) |
| 3 | eltrans.1 | . . 3 ⊢ 𝐴 ∈ V | |
| 4 | 3 | dftr6 36707 | . 2 ⊢ (Tr 𝐴 ↔ 𝐴 ∈ (V ∖ ran (( E ∘ E ) ∖ E ))) |
| 5 | 2, 4 | bitr4i 281 | 1 ⊢ (𝐴 ∈ Trans ↔ Tr 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∈ wcel 2147 Vcvv 3454 ∖ cdif 4048 Tr wtr 5216 E cep 5555 ran crn 5657 ∘ ccom 5660 Trans ctrans 36786 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5253 ax-pr 5396 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ne 2960 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5172 df-tr 5217 df-eprel 5556 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-trans 36810 |
| This theorem is used by: dfon3 36845 |
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