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| Mirrors > Home > MPE Home > Th. List > Mathboxes > br1cnvssrres | Structured version Visualization version GIF version | ||
| Description: Restricted converse subset binary relation. (Contributed by Peter Mazsa, 25-Nov-2019.) |
| Ref | Expression |
|---|---|
| br1cnvssrres | ⊢ (𝐵 ∈ 𝑉 → (𝐵◡( S ↾ 𝐴)𝐶 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶 ⊆ 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relres 5956 | . . 3 ⊢ Rel ( S ↾ 𝐴) | |
| 2 | 1 | relbrcnv 6058 | . 2 ⊢ (𝐵◡( S ↾ 𝐴)𝐶 ↔ 𝐶( S ↾ 𝐴)𝐵) |
| 3 | brssrres 38501 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐶( S ↾ 𝐴)𝐵 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶 ⊆ 𝐵))) | |
| 4 | 2, 3 | bitrid 283 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐵◡( S ↾ 𝐴)𝐶 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶 ⊆ 𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2109 ⊆ wss 3903 class class class wbr 5092 ◡ccnv 5618 ↾ cres 5621 S cssr 38178 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2066 df-clab 2708 df-cleq 2721 df-clel 2803 df-ral 3045 df-rex 3054 df-rab 3395 df-v 3438 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4285 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-br 5093 df-opab 5155 df-xp 5625 df-rel 5626 df-cnv 5627 df-res 5631 df-ssr 38495 |
| This theorem is referenced by: (None) |
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