| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > swapf1f1o | Structured version Visualization version GIF version | ||
| Description: The object part of the swap functor is a bijection between base sets. (Contributed by Zhi Wang, 8-Oct-2025.) |
| Ref | Expression |
|---|---|
| swapf1f1o.o | ⊢ (𝜑 → (𝐶 swapF 𝐷) = 〈𝑂, 𝑃〉) |
| swapf1f1o.s | ⊢ 𝑆 = (𝐶 ×c 𝐷) |
| swapf1f1o.t | ⊢ 𝑇 = (𝐷 ×c 𝐶) |
| swapf1f1o.c | ⊢ (𝜑 → 𝐶 ∈ 𝑈) |
| swapf1f1o.d | ⊢ (𝜑 → 𝐷 ∈ 𝑉) |
| swapf1f1o.b | ⊢ 𝐵 = (Base‘𝑆) |
| swapf1f1o.a | ⊢ 𝐴 = (Base‘𝑇) |
| Ref | Expression |
|---|---|
| swapf1f1o | ⊢ (𝜑 → 𝑂:𝐵–1-1-onto→𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | swapf1f1o.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑆) | |
| 2 | swapf1f1o.s | . . . . . 6 ⊢ 𝑆 = (𝐶 ×c 𝐷) | |
| 3 | eqid 2739 | . . . . . 6 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 4 | eqid 2739 | . . . . . 6 ⊢ (Base‘𝐷) = (Base‘𝐷) | |
| 5 | 2, 3, 4 | xpcbas 18135 | . . . . 5 ⊢ ((Base‘𝐶) × (Base‘𝐷)) = (Base‘𝑆) |
| 6 | 1, 5 | eqtr4i 2765 | . . . 4 ⊢ 𝐵 = ((Base‘𝐶) × (Base‘𝐷)) |
| 7 | 6 | mpteq1i 5163 | . . 3 ⊢ (𝑥 ∈ 𝐵 ↦ ∪ ◡{𝑥}) = (𝑥 ∈ ((Base‘𝐶) × (Base‘𝐷)) ↦ ∪ ◡{𝑥}) |
| 8 | 7 | xpcomf1o 8994 | . 2 ⊢ (𝑥 ∈ 𝐵 ↦ ∪ ◡{𝑥}):((Base‘𝐶) × (Base‘𝐷))–1-1-onto→((Base‘𝐷) × (Base‘𝐶)) |
| 9 | swapf1f1o.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝑈) | |
| 10 | swapf1f1o.d | . . . 4 ⊢ (𝜑 → 𝐷 ∈ 𝑉) | |
| 11 | swapf1f1o.o | . . . 4 ⊢ (𝜑 → (𝐶 swapF 𝐷) = 〈𝑂, 𝑃〉) | |
| 12 | 9, 10, 2, 1, 11 | swapf1val 49757 | . . 3 ⊢ (𝜑 → 𝑂 = (𝑥 ∈ 𝐵 ↦ ∪ ◡{𝑥})) |
| 13 | 6 | a1i 11 | . . 3 ⊢ (𝜑 → 𝐵 = ((Base‘𝐶) × (Base‘𝐷))) |
| 14 | swapf1f1o.a | . . . . 5 ⊢ 𝐴 = (Base‘𝑇) | |
| 15 | swapf1f1o.t | . . . . . 6 ⊢ 𝑇 = (𝐷 ×c 𝐶) | |
| 16 | 15, 4, 3 | xpcbas 18135 | . . . . 5 ⊢ ((Base‘𝐷) × (Base‘𝐶)) = (Base‘𝑇) |
| 17 | 14, 16 | eqtr4i 2765 | . . . 4 ⊢ 𝐴 = ((Base‘𝐷) × (Base‘𝐶)) |
| 18 | 17 | a1i 11 | . . 3 ⊢ (𝜑 → 𝐴 = ((Base‘𝐷) × (Base‘𝐶))) |
| 19 | 12, 13, 18 | f1oeq123d 6761 | . 2 ⊢ (𝜑 → (𝑂:𝐵–1-1-onto→𝐴 ↔ (𝑥 ∈ 𝐵 ↦ ∪ ◡{𝑥}):((Base‘𝐶) × (Base‘𝐷))–1-1-onto→((Base‘𝐷) × (Base‘𝐶)))) |
| 20 | 8, 19 | mpbiri 259 | 1 ⊢ (𝜑 → 𝑂:𝐵–1-1-onto→𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 {csn 4555 〈cop 4561 ∪ cuni 4838 ↦ cmpt 5153 × cxp 5616 ◡ccnv 5617 –1-1-onto→wf1o 6484 ‘cfv 6485 (class class class)co 7356 Basecbs 17170 ×c cxpc 18125 swapF cswapf 49749 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-nel 3039 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-tp 4560 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-tr 5180 df-id 5513 df-eprel 5518 df-po 5526 df-so 5527 df-fr 5571 df-we 5573 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-pred 6252 df-ord 6313 df-on 6314 df-lim 6315 df-suc 6316 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8633 df-en 8884 df-dom 8885 df-sdom 8886 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 df-7 12240 df-8 12241 df-9 12242 df-n0 12429 df-z 12516 df-dec 12636 df-slot 17143 df-ndx 17155 df-base 17171 df-hom 17235 df-cco 17236 df-xpc 18129 df-swapf 49750 |
| This theorem is referenced by: swapf2f1oaALT 49768 swapfcoa 49771 swapffunc 49772 swapfiso 49775 |
| Copyright terms: Public domain | W3C validator |