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Theorem djuin 7020
Description: The images of any classes under right and left injection produce disjoint sets. (Contributed by Jim Kingdon, 21-Jun-2022.) (Proof shortened by BJ, 9-Jul-2023.)
Assertion
Ref Expression
djuin ((inl “ 𝐴) ∩ (inr “ 𝐵)) = ∅

Proof of Theorem djuin
StepHypRef Expression
1 df-ima 4611 . . 3 (inl “ 𝐴) = ran (inl ↾ 𝐴)
2 df-ima 4611 . . 3 (inr “ 𝐵) = ran (inr ↾ 𝐵)
31, 2ineq12i 3316 . 2 ((inl “ 𝐴) ∩ (inr “ 𝐵)) = (ran (inl ↾ 𝐴) ∩ ran (inr ↾ 𝐵))
4 djuinr 7019 . 2 (ran (inl ↾ 𝐴) ∩ ran (inr ↾ 𝐵)) = ∅
53, 4eqtri 2185 1 ((inl “ 𝐴) ∩ (inr “ 𝐵)) = ∅
Colors of variables: wff set class
Syntax hints:   = wceq 1342  cin 3110  c0 3404  ran crn 4599  cres 4600  cima 4601  inlcinl 7001  inrcinr 7002
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 604  ax-in2 605  ax-io 699  ax-5 1434  ax-7 1435  ax-gen 1436  ax-ie1 1480  ax-ie2 1481  ax-8 1491  ax-10 1492  ax-11 1493  ax-i12 1494  ax-bndl 1496  ax-4 1497  ax-17 1513  ax-i9 1517  ax-ial 1521  ax-i5r 1522  ax-13 2137  ax-14 2138  ax-ext 2146  ax-sep 4094  ax-nul 4102  ax-pow 4147  ax-pr 4181  ax-un 4405
This theorem depends on definitions:  df-bi 116  df-3an 969  df-tru 1345  df-fal 1348  df-nf 1448  df-sb 1750  df-eu 2016  df-mo 2017  df-clab 2151  df-cleq 2157  df-clel 2160  df-nfc 2295  df-ne 2335  df-ral 2447  df-rex 2448  df-v 2723  df-sbc 2947  df-dif 3113  df-un 3115  df-in 3117  df-ss 3124  df-nul 3405  df-pw 3555  df-sn 3576  df-pr 3577  df-op 3579  df-uni 3784  df-br 3977  df-opab 4038  df-mpt 4039  df-tr 4075  df-id 4265  df-iord 4338  df-on 4340  df-suc 4343  df-xp 4604  df-rel 4605  df-cnv 4606  df-co 4607  df-dm 4608  df-rn 4609  df-res 4610  df-ima 4611  df-iota 5147  df-fun 5184  df-fn 5185  df-f 5186  df-f1 5187  df-fo 5188  df-f1o 5189  df-fv 5190  df-1st 6100  df-2nd 6101  df-1o 6375  df-inl 7003  df-inr 7004
This theorem is referenced by:  caseinl  7047  caseinr  7048  endjusym  7052  ctssdccl  7067  dju1p1e2  7144  endjudisj  7157  djuen  7158
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