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Theorem invdisj 3750
Description: If there is a function  C such that  C for all , then the sets for distinct are disjoint. (Contributed by Mario Carneiro, 10-Dec-2016.)
Assertion
Ref Expression
invdisj  C Disj
Distinct variable groups:   ,   ,   ,   , C
Allowed substitution hints:   ()   ()    C()

Proof of Theorem invdisj
StepHypRef Expression
1 nfra2xy 2358 . . 3  F/  C
2 df-ral 2305 . . . . 5  C  C
3 rsp 2363 . . . . . . . . 9  C  C
4 eqcom 2039 . . . . . . . . 9  C  C
53, 4syl6ib 150 . . . . . . . 8  C  C
65imim2i 12 . . . . . . 7  C  C
76impd 242 . . . . . 6  C  C
87alimi 1341 . . . . 5  C  C
92, 8sylbi 114 . . . 4  C  C
10 mo2icl 2714 . . . 4  C
119, 10syl 14 . . 3  C
121, 11alrimi 1412 . 2  C
13 dfdisj2 3738 . 2 Disj
1412, 13sylibr 137 1  C Disj
Colors of variables: wff set class
Syntax hints:   wi 4   wa 97  wal 1240   wceq 1242   wcel 1390  wmo 1898  wral 2300  Disj wdisj 3736
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 629  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-8 1392  ax-10 1393  ax-11 1394  ax-i12 1395  ax-bndl 1396  ax-4 1397  ax-17 1416  ax-i9 1420  ax-ial 1424  ax-i5r 1425  ax-ext 2019
This theorem depends on definitions:  df-bi 110  df-tru 1245  df-nf 1347  df-sb 1643  df-eu 1900  df-mo 1901  df-clab 2024  df-cleq 2030  df-clel 2033  df-nfc 2164  df-ral 2305  df-rmo 2308  df-v 2553  df-disj 3737
This theorem is referenced by: (None)
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