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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 35852 | . 2 ⊢ Image𝑅 = ((V × V) ∖ ran ((V ⊗ E ) △ (( E ∘ ◡𝑅) ⊗ V))) | |
| 4 | brxp 5687 | . . 3 ⊢ (𝐴(V × V)𝐵 ↔ (𝐴 ∈ V ∧ 𝐵 ∈ V)) | |
| 5 | 1, 2, 4 | mpbir2an 711 | . 2 ⊢ 𝐴(V × V)𝐵 |
| 6 | vex 3451 | . . . . 5 ⊢ 𝑥 ∈ V | |
| 7 | vex 3451 | . . . . 5 ⊢ 𝑦 ∈ V | |
| 8 | 6, 7 | brcnv 5846 | . . . 4 ⊢ (𝑥◡𝑅𝑦 ↔ 𝑦𝑅𝑥) |
| 9 | 8 | rexbii 3076 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 𝑥◡𝑅𝑦 ↔ ∃𝑦 ∈ 𝐴 𝑦𝑅𝑥) |
| 10 | 6, 1 | coep 35739 | . . 3 ⊢ (𝑥( E ∘ ◡𝑅)𝐴 ↔ ∃𝑦 ∈ 𝐴 𝑥◡𝑅𝑦) |
| 11 | 6 | elima 6036 | . . 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 35884 | 1 ⊢ (𝐴Image𝑅𝐵 ↔ 𝐵 = (𝑅 “ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 = wceq 1540 ∈ wcel 2109 ∃wrex 3053 Vcvv 3447 class class class wbr 5107 E cep 5537 × cxp 5636 ◡ccnv 5637 “ cima 5641 ∘ ccom 5642 Imagecimage 35828 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5251 ax-nul 5261 ax-pr 5387 ax-un 7711 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rab 3406 df-v 3449 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-symdif 4216 df-nul 4297 df-if 4489 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-br 5108 df-opab 5170 df-mpt 5189 df-id 5533 df-eprel 5538 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-fo 6517 df-fv 6519 df-1st 7968 df-2nd 7969 df-txp 35842 df-image 35852 |
| This theorem is referenced by: brimageg 35915 funimage 35916 fnimage 35917 imageval 35918 brdomain 35921 brrange 35922 brimg 35925 funpartlem 35930 imagesset 35941 |
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