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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 5920 | . . 3 ⊢ Rel ( S ↾ 𝐴) | |
2 | 1 | relbrcnv 6015 | . 2 ⊢ (𝐵◡( S ↾ 𝐴)𝐶 ↔ 𝐶( S ↾ 𝐴)𝐵) |
3 | brssrres 36622 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐶( S ↾ 𝐴)𝐵 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶 ⊆ 𝐵))) | |
4 | 2, 3 | syl5bb 283 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐵◡( S ↾ 𝐴)𝐶 ↔ (𝐶 ∈ 𝐴 ∧ 𝐶 ⊆ 𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2106 ⊆ wss 3887 class class class wbr 5074 ◡ccnv 5588 ↾ cres 5591 S cssr 36336 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pr 5352 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-sb 2068 df-clab 2716 df-cleq 2730 df-clel 2816 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-sn 4562 df-pr 4564 df-op 4568 df-br 5075 df-opab 5137 df-xp 5595 df-rel 5596 df-cnv 5597 df-res 5601 df-ssr 36616 |
This theorem is referenced by: (None) |
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