Mathbox for Alexander van der Vekens |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > mapsnop | Structured version Visualization version GIF version |
Description: A singleton of an ordered pair as an element of the mapping operation. (Contributed by AV, 12-Apr-2019.) |
Ref | Expression |
---|---|
mapsnop.f | ⊢ 𝐹 = {〈𝑋, 𝑌〉} |
Ref | Expression |
---|---|
mapsnop | ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → 𝐹 ∈ (𝑅 ↑m {𝑋})) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mapsnop.f | . . . 4 ⊢ 𝐹 = {〈𝑋, 𝑌〉} | |
2 | fsng 6991 | . . . . 5 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅) → (𝐹:{𝑋}⟶{𝑌} ↔ 𝐹 = {〈𝑋, 𝑌〉})) | |
3 | 2 | 3adant3 1130 | . . . 4 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → (𝐹:{𝑋}⟶{𝑌} ↔ 𝐹 = {〈𝑋, 𝑌〉})) |
4 | 1, 3 | mpbiri 257 | . . 3 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → 𝐹:{𝑋}⟶{𝑌}) |
5 | snssi 4738 | . . . 4 ⊢ (𝑌 ∈ 𝑅 → {𝑌} ⊆ 𝑅) | |
6 | 5 | 3ad2ant2 1132 | . . 3 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → {𝑌} ⊆ 𝑅) |
7 | 4, 6 | fssd 6602 | . 2 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → 𝐹:{𝑋}⟶𝑅) |
8 | simp3 1136 | . . 3 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → 𝑅 ∈ 𝑊) | |
9 | snex 5349 | . . 3 ⊢ {𝑋} ∈ V | |
10 | elmapg 8586 | . . 3 ⊢ ((𝑅 ∈ 𝑊 ∧ {𝑋} ∈ V) → (𝐹 ∈ (𝑅 ↑m {𝑋}) ↔ 𝐹:{𝑋}⟶𝑅)) | |
11 | 8, 9, 10 | sylancl 585 | . 2 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → (𝐹 ∈ (𝑅 ↑m {𝑋}) ↔ 𝐹:{𝑋}⟶𝑅)) |
12 | 7, 11 | mpbird 256 | 1 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑅 ∧ 𝑅 ∈ 𝑊) → 𝐹 ∈ (𝑅 ↑m {𝑋})) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ⊆ wss 3883 {csn 4558 〈cop 4564 ⟶wf 6414 (class class class)co 7255 ↑m cmap 8573 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-map 8575 |
This theorem is referenced by: lincvalsng 45645 lcosn0 45649 |
Copyright terms: Public domain | W3C validator |