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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 5808 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴(𝐶 ∘ 𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥 ∧ 𝑥𝐶𝐵))) | |
| 4 | 1, 2, 3 | mp2an 698 | 1 ⊢ (𝐴(𝐶 ∘ 𝐷)𝐵 ↔ ∃𝑥(𝐴𝐷𝑥 ∧ 𝑥𝐶𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 207 ∧ wa 396 ∃wex 1786 ∈ wcel 2119 Vcvv 3431 class class class wbr 5072 ∘ ccom 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 ax-sep 5218 ax-pr 5362 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 df-br 5073 df-opab 5135 df-co 5627 |
| This theorem is referenced by: opelco 5813 cnvco 5827 cotrg 6061 resco 6201 imaco 6202 rnco 6203 rncoOLD 6204 coass 6217 dfpo2 6247 dffv2 6922 foeqcnvco 7244 f1eqcocnv 7245 ttrclss 9632 rtrclreclem3 15013 imasleval 17496 ustuqtop4 24227 metustexhalf 24539 dftr6 35979 coep 35980 coepr 35981 brtxp 36106 pprodss4v 36110 brpprod 36111 sscoid 36139 elfuns 36141 brimg 36163 brapply 36164 brcup 36165 brcap 36166 brsuccf 36168 funpartlem 36170 brrestrict 36177 dfrecs2 36178 dfrdg4 36179 cnvssco 44050 brpermmodel 45447 xpco2 49347 |
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