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| Mirrors > Home > MPE Home > Th. List > brco | Structured version Visualization version GIF version | ||
| Description: Binary relation on a composition. (Contributed by NM, 21-Sep-2004.) (Revised by Mario Carneiro, 24-Feb-2015.) |
| Ref | Expression |
|---|---|
| opelco.1 | ⊢ 𝐴 ∈ V |
| opelco.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| brco | ⊢ (𝐴(𝐶 ∘ 𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥 ∧ 𝑥𝐶𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelco.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | opelco.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | brcog 5809 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴(𝐶 ∘ 𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥 ∧ 𝑥𝐶𝐵))) | |
| 4 | 1, 2, 3 | mp2an 692 | 1 ⊢ (𝐴(𝐶 ∘ 𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥 ∧ 𝑥𝐶𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∃wex 1779 ∈ wcel 2109 Vcvv 3436 class class class wbr 5092 ∘ ccom 5623 |
| 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-rab 3395 df-v 3438 df-dif 3906 df-un 3908 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-co 5628 |
| This theorem is referenced by: opelco 5814 cnvco 5828 cotrg 6060 resco 6199 imaco 6200 rnco 6201 coass 6214 dfpo2 6244 dffv2 6918 foeqcnvco 7237 f1eqcocnv 7238 ttrclss 9616 rtrclreclem3 14967 imasleval 17445 ustuqtop4 24130 metustexhalf 24442 dftr6 35728 coep 35729 coepr 35730 brtxp 35858 pprodss4v 35862 brpprod 35863 sscoid 35891 elfuns 35893 brimg 35915 brapply 35916 brcup 35917 brcap 35918 brsuccf 35919 funpartlem 35920 brrestrict 35927 dfrecs2 35928 dfrdg4 35929 cnvssco 43583 brpermmodel 44981 xpco2 48845 |
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