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Mirrors > Home > MPE Home > Th. List > f1oen | Structured version Visualization version GIF version |
Description: The domain and range of a one-to-one, onto function are equinumerous. (Contributed by NM, 19-Jun-1998.) |
Ref | Expression |
---|---|
f1oen.1 | ⊢ 𝐴 ∈ V |
Ref | Expression |
---|---|
f1oen | ⊢ (𝐹:𝐴–1-1-onto→𝐵 → 𝐴 ≈ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1oen.1 | . 2 ⊢ 𝐴 ∈ V | |
2 | f1oeng 8511 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐹:𝐴–1-1-onto→𝐵) → 𝐴 ≈ 𝐵) | |
3 | 1, 2 | mpan 689 | 1 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → 𝐴 ≈ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2111 Vcvv 3441 class class class wbr 5030 –1-1-onto→wf1o 6323 ≈ cen 8489 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-en 8493 |
This theorem is referenced by: mapfien2 8856 infxpenlem 9424 dfac8alem 9440 dfac12lem2 9555 dfac12lem3 9556 r1om 9655 axcc2lem 9847 summolem3 15063 summolem2 15065 zsum 15067 prodmolem3 15279 prodmolem2 15281 zprod 15283 cpnnen 15574 eulerthlem2 16109 hashgcdeq 16116 4sqlem11 16281 gicen 18409 odhash 18691 odhash2 18692 sylow1lem2 18716 sylow2blem1 18737 znhash 20250 wlkswwlksen 27666 wlknwwlksnen 27675 eupthfi 27990 numclwwlk1lem2 28145 ballotlemfrc 31894 ballotlem8 31904 erdszelem10 32560 poimirlem4 35061 poimirlem26 35083 poimirlem27 35084 pwfi2en 40041 aacllem 45329 |
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