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| Mirrors > Home > ILE Home > Th. List > mptrel | GIF version | ||
| Description: The maps-to notation always describes a relationship. (Contributed by Scott Fenton, 16-Apr-2012.) |
| Ref | Expression |
|---|---|
| mptrel | ⊢ Rel (𝑥 ∈ 𝐴 ↦ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-mpt 4178 | . 2 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
| 2 | 1 | relopabi 4885 | 1 ⊢ Rel (𝑥 ∈ 𝐴 ↦ 𝐵) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1398 ∈ wcel 2205 ↦ cmpt 4176 Rel wrel 4759 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-opab 4177 df-mpt 4178 df-xp 4760 df-rel 4761 |
| This theorem is referenced by: swrd0g 11380 opprringb 14328 rrgmex 14511 lssmex 14633 2idlmex 14779 cnprcl2k 15201 psmetrel 15317 metrel 15337 xmetrel 15338 xmetf 15345 mopnrel 15436 |
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