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| Mirrors > Home > MPE Home > Th. List > Mathboxes > elec1cnvres | Structured version Visualization version GIF version | ||
| Description: Elementhood in the converse restricted coset of 𝐵. (Contributed by Peter Mazsa, 21-Sep-2018.) |
| Ref | Expression |
|---|---|
| elec1cnvres | ⊢ (𝐵 ∈ 𝑉 → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relcnv 6064 | . . 3 ⊢ Rel ◡(𝑅 ↾ 𝐴) | |
| 2 | relelec 8685 | . . 3 ⊢ (Rel ◡(𝑅 ↾ 𝐴) → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ 𝐵◡(𝑅 ↾ 𝐴)𝐶)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ 𝐵◡(𝑅 ↾ 𝐴)𝐶) |
| 4 | br1cnvres 38612 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐵◡(𝑅 ↾ 𝐴)𝐶 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵))) | |
| 5 | 3, 4 | bitrid 283 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐶 ∈ [𝐵]◡(𝑅 ↾ 𝐴) ↔ (𝐶 ∈ 𝐴 ∧ 𝐶𝑅𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 class class class wbr 5086 ◡ccnv 5624 ↾ cres 5627 Rel wrel 5630 [cec 8635 |
| 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-pr 5371 |
| 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-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-xp 5631 df-rel 5632 df-cnv 5633 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-ec 8639 |
| This theorem is referenced by: ec1cnvres 38614 |
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