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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 3902 df-un 3904 df-in 3906 df-ss 3916 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 6114 cnvxp 6146 xpco 6285 dfpo2 6292 predtrss 6318 isocnv3 7332 tpostpos 8247 brinxper 8731 swoer 8733 erinxp 8796 ecopover 8826 infxpenlem 10073 fpwwe2lem5 10701 fpwwe2lem6 10702 fpwwe2lem8 10704 fpwwe2lem11 10707 fpwwe2lem12 10708 fpwwe2 10709 ltxrlt 11361 ltxr 13225 xpcogend 15107 invfuc 18132 elhoma 18187 ecxpid 19366 qusxpid 19375 efglem 19910 gsumcom3fi 20173 gsumdixp 20528 znleval 21840 gsumbagdiag 22220 psrass1lem 22221 opsrtoslem2 22345 lenlts 28091 zsoring 28777 brelg 33183 posrasymb 33510 trleile 33514 metider 34508 satefvfmla1 36159 mclsppslem 36317 xpab 36460 dfon3 36624 brbigcup 36630 brsingle 36649 brimage 36658 brcart 36664 brapply 36670 brcup 36671 brcap 36672 funpartlem 36676 dfrdg4 36685 brub 36688 bj-xpcossxp 38078 itg2gt0cn 38561 grucollcld 45203 grumnud 45229 coxp 49887 xpco2 49911 |
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