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Mirrors > Home > ILE Home > Th. List > mapsnf1o3 | GIF version |
Description: Explicit bijection in the reverse of mapsnf1o2 6752. (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 2193 | . . . 4 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) | |
5 | 1, 2, 3, 4 | mapsnf1o2 6752 | . . 3 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):(𝐵 ↑𝑚 𝑆)–1-1-onto→𝐵 |
6 | f1ocnv 5514 | . . 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 6751 | . . . 4 ⊢ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦})) |
10 | 8, 9 | eqtr4i 2217 | . . 3 ⊢ 𝐹 = ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) |
11 | f1oeq1 5489 | . . 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 1364 ∈ wcel 2164 Vcvv 2760 {csn 3619 ↦ cmpt 4091 × cxp 4658 ◡ccnv 4659 –1-1-onto→wf1o 5254 ‘cfv 5255 (class class class)co 5919 ↑𝑚 cmap 6704 |
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 615 ax-in2 616 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-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 ax-un 4465 ax-setind 4570 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-ral 2477 df-rex 2478 df-reu 2479 df-v 2762 df-sbc 2987 df-dif 3156 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-opab 4092 df-mpt 4093 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-rn 4671 df-res 4672 df-ima 4673 df-iota 5216 df-fun 5257 df-fn 5258 df-f 5259 df-f1 5260 df-fo 5261 df-f1o 5262 df-fv 5263 df-ov 5922 df-oprab 5923 df-mpo 5924 df-map 6706 |
This theorem is referenced by: (None) |
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