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Mirrors > Home > MPE Home > Th. List > ineq1i | Structured version Visualization version GIF version |
Description: Equality inference for intersection of two classes. (Contributed by NM, 26-Dec-1993.) |
Ref | Expression |
---|---|
ineq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
ineq1i | ⊢ (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ineq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | ineq1 3769 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐶)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 ∩ cin 3539 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-v 3175 df-in 3547 |
This theorem is referenced by: in12 3786 inindi 3792 dfrab3 3861 dfif5 4052 disjpr2 4194 disjpr2OLD 4195 resres 5329 imainrect 5494 predidm 5619 fresaun 5988 fresaunres2 5989 ssenen 8019 hartogslem1 8330 leiso 13100 f1oun2prg 13512 smumul 15053 setsfun 15725 setsfun0 15726 firest 15916 lsmdisj2r 17921 frgpuplem 18008 ltbwe 19293 tgrest 20773 fiuncmp 21017 ptclsg 21228 metnrmlem3 22472 mbfid 23209 ppi1 24690 cht1 24691 ppiub 24729 cusgrasizeindslem1 26002 chdmj2i 27725 chjassi 27729 pjoml2i 27828 pjoml4i 27830 cmcmlem 27834 mayetes3i 27972 cvmdi 28567 atomli 28625 atabsi 28644 uniin1 28750 disjuniel 28792 imadifxp 28796 gtiso 28861 prsss 29290 ordtrest2NEW 29297 esumnul 29437 measinblem 29610 eulerpartlemt 29760 ballotlem2 29877 ballotlemfp1 29880 ballotlemfval0 29884 mthmpps 30733 dffv5 31201 mblfinlem2 32617 ismblfin 32620 mbfposadd 32627 itg2addnclem2 32632 asindmre 32665 diophrw 36340 dnwech 36636 lmhmlnmsplit 36675 rp-fakeuninass 36881 iunrelexp0 37013 nznngen 37537 sge0sn 39272 31prm 40050 prinfzo0 40363 |
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