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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 4093 | . 2 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 = 𝐵)} | |
2 | 1 | relopabi 4788 | 1 ⊢ Rel (𝑥 ∈ 𝐴 ↦ 𝐵) |
Colors of variables: wff set class |
Syntax hints: ∧ wa 104 = wceq 1364 ∈ wcel 2164 ↦ cmpt 4091 Rel wrel 4665 |
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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-opab 4092 df-mpt 4093 df-xp 4666 df-rel 4667 |
This theorem is referenced by: rrgmex 13760 lssmex 13854 2idlmex 14000 cnprcl2k 14385 psmetrel 14501 metrel 14521 xmetrel 14522 xmetf 14529 mopnrel 14620 |
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