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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 5103 | . 2 ⊢ (𝐴(𝐶 × 𝐷)𝐵 ↔ 〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷)) | |
| 2 | opelxp 5686 | . 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 2144 〈cop 4834 class class class wbr 5102 × cxp 5648 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-br 5103 df-opab 5167 df-xp 5656 |
| This theorem is used by: brrelex12 5702 brel 5715 brinxp2 5728 eqbrrdva 5846 ssrelrn 5875 dmxp 5910 xpidtr 6115 cnvxp 6146 xpco 6292 dfpo2 6299 predtrss 6325 isocnv3 7340 tpostpos 8266 brinxper 8750 swoer 8752 erinxp 8815 ecopover 8845 infxpenlem 10095 fpwwe2lem5 10723 fpwwe2lem6 10724 fpwwe2lem8 10726 fpwwe2lem11 10729 fpwwe2lem12 10730 fpwwe2 10731 ltxrlt 11383 ltxr 13247 xpcogend 15132 invfuc 18157 elhoma 18212 ecxpid 19391 qusxpid 19400 efglem 19935 gsumcom3fi 20198 gsumdixp 20553 znleval 21865 gsumbagdiag 22245 psrass1lem 22246 opsrtoslem2 22370 lenlts 28114 zsoring 28800 brelg 33248 posrasymb 33574 trleile 33578 metider 34572 satefvfmla1 36276 mclsppslem 36434 xpab 36583 dfon3 36746 brbigcup 36752 brsingle 36771 brimage 36780 brcart 36786 brapply 36792 brcup 36793 brcap 36794 funpartlem 36798 dfrdg4 36807 brub 36810 bj-xpcossxp 38203 itg2gt0cn 38686 grucollcld 45337 grumnud 45363 coxp 50037 xpco2 50061 |
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