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| Mirrors > Home > MPE Home > Th. List > brxp | Structured version Visualization version GIF version | ||
| Description: Binary relation on a Cartesian product. (Contributed by NM, 22-Apr-2004.) |
| Ref | Expression |
|---|---|
| brxp | ⊢ (𝐴(𝐶 × 𝐷)𝐵 ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-br 5104 | . 2 ⊢ (𝐴(𝐶 × 𝐷)𝐵 ↔ 〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷)) | |
| 2 | opelxp 5687 | . 2 ⊢ (〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷) ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) | |
| 3 | 1, 2 | bitri 278 | 1 ⊢ (𝐴(𝐶 × 𝐷)𝐵 ↔ (𝐴 ∈ 𝐶 ∧ 𝐵 ∈ 𝐷)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∈ wcel 2145 〈cop 4590 class class class wbr 5103 × cxp 5649 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 ax-sep 5249 ax-pr 5391 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3900 df-un 3902 df-in 3904 df-ss 3915 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-xp 5657 |
| This theorem is used by: brrelex12 5703 brel 5716 brinxp2 5729 eqbrrdva 5847 ssrelrn 5876 dmxp 5911 xpidtr 6116 cnvxp 6147 xpco 6293 dfpo2 6300 predtrss 6326 isocnv3 7341 tpostpos 8264 brinxper 8748 swoer 8750 erinxp 8813 ecopover 8843 infxpenlem 10093 fpwwe2lem5 10721 fpwwe2lem6 10722 fpwwe2lem8 10724 fpwwe2lem11 10727 fpwwe2lem12 10728 fpwwe2 10729 ltxrlt 11381 ltxr 13245 xpcogend 15128 invfuc 18153 elhoma 18208 ecxpid 19387 qusxpid 19396 efglem 19931 gsumcom3fi 20194 gsumdixp 20549 znleval 21861 gsumbagdiag 22241 psrass1lem 22242 opsrtoslem2 22366 lenlts 28110 zsoring 28796 brelg 33202 posrasymb 33529 trleile 33533 metider 34527 satefvfmla1 36191 mclsppslem 36349 xpab 36492 dfon3 36655 brbigcup 36661 brsingle 36680 brimage 36689 brcart 36695 brapply 36701 brcup 36702 brcap 36703 funpartlem 36707 dfrdg4 36716 brub 36719 bj-xpcossxp 38112 itg2gt0cn 38595 grucollcld 45245 grumnud 45271 coxp 49944 xpco2 49968 |
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