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| Mirrors > Home > MPE Home > Th. List > cantnff1o | Structured version Visualization version GIF version | ||
| Description: Simplify the isomorphism of cantnf 9589 to simple bijection. (Contributed by Mario Carneiro, 30-May-2015.) |
| Ref | Expression |
|---|---|
| cantnff1o.1 | ⊢ 𝑆 = dom (𝐴 CNF 𝐵) |
| cantnff1o.2 | ⊢ (𝜑 → 𝐴 ∈ On) |
| cantnff1o.3 | ⊢ (𝜑 → 𝐵 ∈ On) |
| Ref | Expression |
|---|---|
| cantnff1o | ⊢ (𝜑 → (𝐴 CNF 𝐵):𝑆–1-1-onto→(𝐴 ↑o 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cantnff1o.1 | . . 3 ⊢ 𝑆 = dom (𝐴 CNF 𝐵) | |
| 2 | cantnff1o.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ On) | |
| 3 | cantnff1o.3 | . . 3 ⊢ (𝜑 → 𝐵 ∈ On) | |
| 4 | eqid 2729 | . . 3 ⊢ {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} = {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))} | |
| 5 | 1, 2, 3, 4 | cantnf 9589 | . 2 ⊢ (𝜑 → (𝐴 CNF 𝐵) Isom {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))}, E (𝑆, (𝐴 ↑o 𝐵))) |
| 6 | isof1o 7260 | . 2 ⊢ ((𝐴 CNF 𝐵) Isom {〈𝑥, 𝑦〉 ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))}, E (𝑆, (𝐴 ↑o 𝐵)) → (𝐴 CNF 𝐵):𝑆–1-1-onto→(𝐴 ↑o 𝐵)) | |
| 7 | 5, 6 | syl 17 | 1 ⊢ (𝜑 → (𝐴 CNF 𝐵):𝑆–1-1-onto→(𝐴 ↑o 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∀wral 3044 ∃wrex 3053 {copab 5154 E cep 5518 dom cdm 5619 Oncon0 6307 –1-1-onto→wf1o 6481 ‘cfv 6482 Isom wiso 6483 (class class class)co 7349 ↑o coe 8387 CNF ccnf 9557 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5218 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-int 4897 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-tr 5200 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-se 5573 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6249 df-ord 6310 df-on 6311 df-lim 6312 df-suc 6313 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-isom 6491 df-riota 7306 df-ov 7352 df-oprab 7353 df-mpo 7354 df-om 7800 df-1st 7924 df-2nd 7925 df-supp 8094 df-frecs 8214 df-wrecs 8245 df-recs 8294 df-rdg 8332 df-seqom 8370 df-1o 8388 df-2o 8389 df-oadd 8392 df-omul 8393 df-oexp 8394 df-er 8625 df-map 8755 df-en 8873 df-dom 8874 df-sdom 8875 df-fin 8876 df-fsupp 9252 df-oi 9402 df-cnf 9558 |
| This theorem is referenced by: oef1o 9594 cnfcomlem 9595 cnfcom 9596 cnfcom2lem 9597 cnfcom2 9598 cnfcom3lem 9599 cnfcom3 9600 cantnf2 43298 |
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