Mathbox for Scott Fenton < Previous   Next > Nearby theorems Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  dfon3 Structured version   Visualization version   GIF version

Theorem dfon3 33728
 Description: A quantifier-free definition of On. (Contributed by Scott Fenton, 5-Apr-2012.)
Assertion
Ref Expression
dfon3 On = (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))

Proof of Theorem dfon3
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 dfon2 33269 . 2 On = {𝑥 ∣ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥)}
2 abeq1 2884 . . 3 ({𝑥 ∣ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥)} = (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))) ↔ ∀𝑥(∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥) ↔ 𝑥 ∈ (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))))
3 vex 3411 . . . . . . 7 𝑥 ∈ V
43elrn 5726 . . . . . 6 (𝑥 ∈ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )) ↔ ∃𝑦 𝑦(( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))𝑥)
5 brin 5077 . . . . . . . . . . 11 (𝑦( SSet ∩ ( Trans × V))𝑥 ↔ (𝑦 SSet 𝑥𝑦( Trans × V)𝑥))
63brsset 33725 . . . . . . . . . . . 12 (𝑦 SSet 𝑥𝑦𝑥)
7 brxp 5563 . . . . . . . . . . . . . 14 (𝑦( Trans × V)𝑥 ↔ (𝑦 Trans 𝑥 ∈ V))
83, 7mpbiran2 710 . . . . . . . . . . . . 13 (𝑦( Trans × V)𝑥𝑦 Trans )
9 vex 3411 . . . . . . . . . . . . . 14 𝑦 ∈ V
109eltrans 33727 . . . . . . . . . . . . 13 (𝑦 Trans ↔ Tr 𝑦)
118, 10bitri 278 . . . . . . . . . . . 12 (𝑦( Trans × V)𝑥 ↔ Tr 𝑦)
126, 11anbi12i 630 . . . . . . . . . . 11 ((𝑦 SSet 𝑥𝑦( Trans × V)𝑥) ↔ (𝑦𝑥 ∧ Tr 𝑦))
135, 12bitri 278 . . . . . . . . . 10 (𝑦( SSet ∩ ( Trans × V))𝑥 ↔ (𝑦𝑥 ∧ Tr 𝑦))
14 ioran 982 . . . . . . . . . . 11 (¬ (𝑦 = 𝑥𝑦𝑥) ↔ (¬ 𝑦 = 𝑥 ∧ ¬ 𝑦𝑥))
15 brun 5076 . . . . . . . . . . . 12 (𝑦( I ∪ E )𝑥 ↔ (𝑦 I 𝑥𝑦 E 𝑥))
163ideq 5685 . . . . . . . . . . . . 13 (𝑦 I 𝑥𝑦 = 𝑥)
17 epel 5431 . . . . . . . . . . . . 13 (𝑦 E 𝑥𝑦𝑥)
1816, 17orbi12i 913 . . . . . . . . . . . 12 ((𝑦 I 𝑥𝑦 E 𝑥) ↔ (𝑦 = 𝑥𝑦𝑥))
1915, 18bitri 278 . . . . . . . . . . 11 (𝑦( I ∪ E )𝑥 ↔ (𝑦 = 𝑥𝑦𝑥))
2014, 19xchnxbir 337 . . . . . . . . . 10 𝑦( I ∪ E )𝑥 ↔ (¬ 𝑦 = 𝑥 ∧ ¬ 𝑦𝑥))
2113, 20anbi12i 630 . . . . . . . . 9 ((𝑦( SSet ∩ ( Trans × V))𝑥 ∧ ¬ 𝑦( I ∪ E )𝑥) ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ (¬ 𝑦 = 𝑥 ∧ ¬ 𝑦𝑥)))
22 brdif 5078 . . . . . . . . 9 (𝑦(( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))𝑥 ↔ (𝑦( SSet ∩ ( Trans × V))𝑥 ∧ ¬ 𝑦( I ∪ E )𝑥))
23 dfpss2 3987 . . . . . . . . . . . . 13 (𝑦𝑥 ↔ (𝑦𝑥 ∧ ¬ 𝑦 = 𝑥))
2423anbi1i 627 . . . . . . . . . . . 12 ((𝑦𝑥 ∧ Tr 𝑦) ↔ ((𝑦𝑥 ∧ ¬ 𝑦 = 𝑥) ∧ Tr 𝑦))
25 an32 646 . . . . . . . . . . . 12 (((𝑦𝑥 ∧ ¬ 𝑦 = 𝑥) ∧ Tr 𝑦) ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦 = 𝑥))
2624, 25bitri 278 . . . . . . . . . . 11 ((𝑦𝑥 ∧ Tr 𝑦) ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦 = 𝑥))
2726anbi1i 627 . . . . . . . . . 10 (((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦𝑥) ↔ (((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦 = 𝑥) ∧ ¬ 𝑦𝑥))
28 anass 473 . . . . . . . . . 10 ((((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦 = 𝑥) ∧ ¬ 𝑦𝑥) ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ (¬ 𝑦 = 𝑥 ∧ ¬ 𝑦𝑥)))
2927, 28bitri 278 . . . . . . . . 9 (((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦𝑥) ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ (¬ 𝑦 = 𝑥 ∧ ¬ 𝑦𝑥)))
3021, 22, 293bitr4i 307 . . . . . . . 8 (𝑦(( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))𝑥 ↔ ((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦𝑥))
3130exbii 1850 . . . . . . 7 (∃𝑦 𝑦(( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))𝑥 ↔ ∃𝑦((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦𝑥))
32 exanali 1861 . . . . . . 7 (∃𝑦((𝑦𝑥 ∧ Tr 𝑦) ∧ ¬ 𝑦𝑥) ↔ ¬ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥))
3331, 32bitri 278 . . . . . 6 (∃𝑦 𝑦(( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))𝑥 ↔ ¬ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥))
344, 33bitri 278 . . . . 5 (𝑥 ∈ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )) ↔ ¬ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥))
3534con2bii 362 . . . 4 (∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥) ↔ ¬ 𝑥 ∈ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))
36 eldif 3864 . . . . 5 (𝑥 ∈ (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))) ↔ (𝑥 ∈ V ∧ ¬ 𝑥 ∈ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))))
373, 36mpbiran 709 . . . 4 (𝑥 ∈ (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))) ↔ ¬ 𝑥 ∈ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))
3835, 37bitr4i 281 . . 3 (∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥) ↔ 𝑥 ∈ (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E ))))
392, 38mpgbir 1802 . 2 {𝑥 ∣ ∀𝑦((𝑦𝑥 ∧ Tr 𝑦) → 𝑦𝑥)} = (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))
401, 39eqtri 2782 1 On = (V ∖ ran (( SSet ∩ ( Trans × V)) ∖ ( I ∪ E )))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 400   ∨ wo 845  ∀wal 1537   = wceq 1539  ∃wex 1782   ∈ wcel 2112  {cab 2736  Vcvv 3407   ∖ cdif 3851   ∪ cun 3852   ∩ cin 3853   ⊆ wss 3854   ⊊ wpss 3855   class class class wbr 5025  Tr wtr 5131   I cid 5422   E cep 5427   × cxp 5515  ran crn 5518  Oncon0 6162   SSet csset 33668   Trans ctrans 33669 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1912  ax-6 1971  ax-7 2016  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2730  ax-sep 5162  ax-nul 5169  ax-pr 5291  ax-un 7452 This theorem depends on definitions:  df-bi 210  df-an 401  df-or 846  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2071  df-mo 2558  df-eu 2589  df-clab 2737  df-cleq 2751  df-clel 2831  df-nfc 2899  df-ne 2950  df-ral 3073  df-rex 3074  df-rab 3077  df-v 3409  df-sbc 3694  df-dif 3857  df-un 3859  df-in 3861  df-ss 3871  df-pss 3873  df-nul 4222  df-if 4414  df-pw 4489  df-sn 4516  df-pr 4518  df-tp 4520  df-op 4522  df-uni 4792  df-int 4832  df-iun 4878  df-iin 4879  df-br 5026  df-opab 5088  df-mpt 5106  df-tr 5132  df-id 5423  df-eprel 5428  df-po 5436  df-so 5437  df-fr 5476  df-we 5478  df-xp 5523  df-rel 5524  df-cnv 5525  df-co 5526  df-dm 5527  df-rn 5528  df-res 5529  df-ord 6165  df-on 6166  df-suc 6168  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-fo 6334  df-fv 6336  df-1st 7686  df-2nd 7687  df-txp 33690  df-sset 33692  df-trans 33693 This theorem is referenced by:  dfon4  33729
 Copyright terms: Public domain W3C validator