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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 5115 | . 2 ⊢ (𝐴(𝐶 × 𝐷)𝐵 ↔ 〈𝐴, 𝐵〉 ∈ (𝐶 × 𝐷)) | |
| 2 | opelxp 5702 | . 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 2146 〈cop 4600 class class class wbr 5114 × cxp 5664 |
| 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 2148 ax-9 2156 ax-ext 2738 ax-sep 5262 ax-pr 5409 |
| 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 2745 df-cleq 2758 df-clel 2841 df-ral 3083 df-rex 3093 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-br 5115 df-opab 5179 df-xp 5672 |
| This theorem is used by: brrelex12 5718 brel 5731 brinxp2 5744 eqbrrdva 5860 ssrelrn 5889 dmxp 5924 xpidtr 6127 xpco 6297 dfpo2 6304 predtrss 6330 isocnv3 7341 tpostpos 8251 brinxper 8733 swoer 8735 erinxp 8798 ecopover 8828 infxpenlem 10016 fpwwe2lem5 10638 fpwwe2lem6 10639 fpwwe2lem8 10641 fpwwe2lem11 10644 fpwwe2lem12 10645 fpwwe2 10646 ltxrlt 11298 ltxr 13158 xpcogend 15037 invfuc 18059 elhoma 18114 ecxpid 19273 qusxpid 19282 efglem 19817 gsumcom3fi 20080 gsumdixp 20433 znleval 21741 gsumbagdiag 22119 psrass1lem 22120 opsrtoslem2 22244 lenlts 27953 zsoring 28639 brelg 32989 posrasymb 33318 trleile 33322 metider 34315 satefvfmla1 35938 mclsppslem 36096 xpab 36239 dfon3 36403 brbigcup 36409 brsingle 36428 brimage 36437 brcart 36443 brapply 36449 brcup 36450 brcap 36451 funpartlem 36455 dfrdg4 36464 brub 36467 bj-xpcossxp 37874 itg2gt0cn 38367 grucollcld 45011 grumnud 45037 coxp 49652 xpco2 49676 |
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