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Mirrors > Home > ILE Home > Th. List > mapsnf1o3 | GIF version |
Description: Explicit bijection in the reverse of mapsnf1o2 6698. (Contributed by Stefan O'Rear, 24-Mar-2015.) |
Ref | Expression |
---|---|
mapsncnv.s | ⊢ 𝑆 = {𝑋} |
mapsncnv.b | ⊢ 𝐵 ∈ V |
mapsncnv.x | ⊢ 𝑋 ∈ V |
mapsnf1o3.f | ⊢ 𝐹 = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦})) |
Ref | Expression |
---|---|
mapsnf1o3 | ⊢ 𝐹:𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mapsncnv.s | . . . 4 ⊢ 𝑆 = {𝑋} | |
2 | mapsncnv.b | . . . 4 ⊢ 𝐵 ∈ V | |
3 | mapsncnv.x | . . . 4 ⊢ 𝑋 ∈ V | |
4 | eqid 2177 | . . . 4 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) | |
5 | 1, 2, 3, 4 | mapsnf1o2 6698 | . . 3 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):(𝐵 ↑𝑚 𝑆)–1-1-onto→𝐵 |
6 | f1ocnv 5476 | . . 3 ⊢ ((𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):(𝐵 ↑𝑚 𝑆)–1-1-onto→𝐵 → ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆)) | |
7 | 5, 6 | ax-mp 5 | . 2 ⊢ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆) |
8 | mapsnf1o3.f | . . . 4 ⊢ 𝐹 = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦})) | |
9 | 1, 2, 3, 4 | mapsncnv 6697 | . . . 4 ⊢ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦})) |
10 | 8, 9 | eqtr4i 2201 | . . 3 ⊢ 𝐹 = ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) |
11 | f1oeq1 5451 | . . 3 ⊢ (𝐹 = ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) → (𝐹:𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆) ↔ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆))) | |
12 | 10, 11 | ax-mp 5 | . 2 ⊢ (𝐹:𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆) ↔ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆)) |
13 | 7, 12 | mpbir 146 | 1 ⊢ 𝐹:𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 105 = wceq 1353 ∈ wcel 2148 Vcvv 2739 {csn 3594 ↦ cmpt 4066 × cxp 4626 ◡ccnv 4627 –1-1-onto→wf1o 5217 ‘cfv 5218 (class class class)co 5877 ↑𝑚 cmap 6650 |
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-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 ax-un 4435 ax-setind 4538 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-reu 2462 df-v 2741 df-sbc 2965 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-br 4006 df-opab 4067 df-mpt 4068 df-id 4295 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-res 4640 df-ima 4641 df-iota 5180 df-fun 5220 df-fn 5221 df-f 5222 df-f1 5223 df-fo 5224 df-f1o 5225 df-fv 5226 df-ov 5880 df-oprab 5881 df-mpo 5882 df-map 6652 |
This theorem is referenced by: (None) |
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