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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 8919 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐹:𝐴–1-1-onto→𝐵) → 𝐴 ≈ 𝐵) | |
| 3 | 1, 2 | mpan 690 | 1 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → 𝐴 ≈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2109 Vcvv 3444 class class class wbr 5102 –1-1-onto→wf1o 6498 ≈ cen 8892 |
| 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 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 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-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-en 8896 |
| This theorem is referenced by: mapfien2 9336 infxpenlem 9942 dfac8alem 9958 dfac12lem2 10074 dfac12lem3 10075 r1om 10172 axcc2lem 10365 summolem3 15656 summolem2 15658 zsum 15660 prodmolem3 15875 prodmolem2 15877 zprod 15879 cpnnen 16173 eulerthlem2 16728 hashgcdeq 16736 4sqlem11 16902 gicen 19192 odhash 19488 odhash2 19489 sylow1lem2 19513 sylow2blem1 19534 znhash 21500 wlkswwlksen 29860 wlknwwlksnen 29869 eupthfi 30184 numclwwlk1lem2 30339 ballotlemfrc 34511 ballotlem8 34521 erdszelem10 35180 poimirlem4 37611 poimirlem26 37633 poimirlem27 37634 pwfi2en 43079 gricen 47918 grlicen 48002 thincciso2 49437 termcterm2 49496 aacllem 49783 |
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