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Mirrors > Home > MPE Home > Th. List > difeq2i | Structured version Visualization version GIF version |
Description: Inference adding difference to the left in a class equality. (Contributed by NM, 15-Nov-2002.) |
Ref | Expression |
---|---|
difeq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
difeq2i | ⊢ (𝐶 ∖ 𝐴) = (𝐶 ∖ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | difeq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | difeq2 4093 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶 ∖ 𝐴) = (𝐶 ∖ 𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐶 ∖ 𝐴) = (𝐶 ∖ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 ∖ cdif 3933 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-rab 3147 df-dif 3939 |
This theorem is referenced by: difeq12i 4097 dfun3 4242 dfin3 4243 dfin4 4244 invdif 4245 indif 4246 difundi 4256 difindi 4258 difdif2 4261 dif32 4267 difabs 4268 dfsymdif3 4269 notrab 4280 dif0 4332 unvdif 4423 difdifdir 4437 dfif3 4481 difpr 4736 iinvdif 5002 cnvin 6003 fndifnfp 6938 dif1o 8125 dfsdom2 8640 dju1dif 9598 m1bits 15789 clsval2 21658 mretopd 21700 cmpfi 22016 llycmpkgen2 22158 pserdvlem2 25016 nbgrssvwo2 27144 finsumvtxdg2ssteplem1 27327 frgrwopreglem3 28093 iundifdifd 30313 iundifdif 30314 difres 30350 pmtrcnelor 30735 cycpmconjv 30784 cyc3conja 30799 sibfof 31598 eulerpartlemmf 31633 kur14lem2 32454 kur14lem6 32458 kur14lem7 32459 satfv1 32610 dfon4 33354 onint1 33797 bj-2upln1upl 34339 poimirlem8 34915 dfssr2 35754 prjspval2 39283 diophren 39430 nonrel 39964 dssmapntrcls 40498 salincl 42628 meaiuninc 42783 carageniuncllem1 42823 |
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