Theorem mapsnf1o3 6866

Description: Explicit bijection in the reverse of mapsnf1o2 6865. (Contributed by Stefan O'Rear, 24-Mar-2015.)

Hypotheses

Ref	Expression
mapsncnv.s	⊢ 𝑆 = {𝑋}
mapsncnv.b	⊢ 𝐵 ∈ V
mapsncnv.x	⊢ 𝑋 ∈ V
mapsnf1o3.f	⊢ 𝐹 = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦}))

Assertion

Ref	Expression
mapsnf1o3	⊢ 𝐹:𝐵–1-1-onto→(𝐵 ↑𝑚 𝑆)

Distinct variable groups:   𝑦,𝐵   𝑦,𝑆   𝑦,𝑋

Allowed substitution hint:   𝐹(𝑦)

Proof of Theorem mapsnf1o3

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		mapsncnv.s	. . . 4 ⊢ 𝑆 = {𝑋}
2		mapsncnv.b	. . . 4 ⊢ 𝐵 ∈ V
3		mapsncnv.x	. . . 4 ⊢ 𝑋 ∈ V
4		eqid 2231	. . . 4 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋))
5	1, 2, 3, 4	mapsnf1o2 6865	. . 3 ⊢ (𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)):(𝐵 ↑𝑚 𝑆)–1-1-onto→𝐵
6		f1ocnv 5596	. . 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 6864	. . . 4 ⊢ ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋)) = (𝑦 ∈ 𝐵 ↦ (𝑆 × {𝑦}))
10	8, 9	eqtr4i 2255	. . 3 ⊢ 𝐹 = ◡(𝑥 ∈ (𝐵 ↑𝑚 𝑆) ↦ (𝑥‘𝑋))
11		f1oeq1 5571	. . 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)

Syntax hints:   ↔ wb 105   = wceq 1397   ∈ wcel 2202  Vcvv 2802  {csn 3669   ↦ cmpt 4150   × cxp 4723  ^◡ccnv 4724  –1-1-onto→wf1o 5325  ‘cfv 5326  (class class class)co 6018   ↑_𝑚 cmap 6817

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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635

This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-ral 2515  df-rex 2516  df-reu 2517  df-v 2804  df-sbc 3032  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-f1 5331  df-fo 5332  df-f1o 5333  df-fv 5334  df-ov 6021  df-oprab 6022  df-mpo 6023  df-map 6819

This theorem is referenced by: (None)