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| Mirrors > Home > MPE Home > Th. List > Mathboxes > brimage | Structured version Visualization version GIF version | ||
| Description: Binary relation form of the Image functor. (Contributed by Scott Fenton, 4-Apr-2014.) (Revised by Mario Carneiro, 19-Apr-2014.) |
| Ref | Expression |
|---|---|
| brimage.1 | ⊢ 𝐴 ∈ V |
| brimage.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| brimage | ⊢ (𝐴Image𝑅𝐵 ↔ 𝐵 = (𝑅 “ 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brimage.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | brimage.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | df-image 35906 | . 2 ⊢ Image𝑅 = ((V × V) ∖ ran ((V ⊗ E ) △ (( E ∘ ◡𝑅) ⊗ V))) | |
| 4 | brxp 5663 | . . 3 ⊢ (𝐴(V × V)𝐵 ↔ (𝐴 ∈ V ∧ 𝐵 ∈ V)) | |
| 5 | 1, 2, 4 | mpbir2an 711 | . 2 ⊢ 𝐴(V × V)𝐵 |
| 6 | vex 3440 | . . . . 5 ⊢ 𝑥 ∈ V | |
| 7 | vex 3440 | . . . . 5 ⊢ 𝑦 ∈ V | |
| 8 | 6, 7 | brcnv 5821 | . . . 4 ⊢ (𝑥◡𝑅𝑦 ↔ 𝑦𝑅𝑥) |
| 9 | 8 | rexbii 3079 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 𝑥◡𝑅𝑦 ↔ ∃𝑦 ∈ 𝐴 𝑦𝑅𝑥) |
| 10 | 6, 1 | coep 35796 | . . 3 ⊢ (𝑥( E ∘ ◡𝑅)𝐴 ↔ ∃𝑦 ∈ 𝐴 𝑥◡𝑅𝑦) |
| 11 | 6 | elima 6013 | . . 3 ⊢ (𝑥 ∈ (𝑅 “ 𝐴) ↔ ∃𝑦 ∈ 𝐴 𝑦𝑅𝑥) |
| 12 | 9, 10, 11 | 3bitr4ri 304 | . 2 ⊢ (𝑥 ∈ (𝑅 “ 𝐴) ↔ 𝑥( E ∘ ◡𝑅)𝐴) |
| 13 | 1, 2, 3, 5, 12 | brtxpsd3 35938 | 1 ⊢ (𝐴Image𝑅𝐵 ↔ 𝐵 = (𝑅 “ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 = wceq 1541 ∈ wcel 2111 ∃wrex 3056 Vcvv 3436 class class class wbr 5089 E cep 5513 × cxp 5612 ◡ccnv 5613 “ cima 5617 ∘ ccom 5618 Imagecimage 35882 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5232 ax-nul 5242 ax-pr 5368 ax-un 7668 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-symdif 4200 df-nul 4281 df-if 4473 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-br 5090 df-opab 5152 df-mpt 5171 df-id 5509 df-eprel 5514 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-fo 6487 df-fv 6489 df-1st 7921 df-2nd 7922 df-txp 35896 df-image 35906 |
| This theorem is referenced by: brimageg 35969 funimage 35970 fnimage 35971 imageval 35972 brdomain 35975 brrange 35976 brimg 35979 funpartlem 35986 imagesset 35997 |
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