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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 4095 | . 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 3935 |
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 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-rab 3149 df-dif 3941 |
This theorem is referenced by: difeq12i 4099 dfun3 4244 dfin3 4245 dfin4 4246 invdif 4247 indif 4248 difundi 4258 difindi 4260 difdif2 4263 dif32 4269 difabs 4270 dfsymdif3 4271 notrab 4282 dif0 4334 unvdif 4425 difdifdir 4439 dfif3 4483 difpr 4738 iinvdif 5004 cnvin 6005 fndifnfp 6940 dif1o 8127 dfsdom2 8642 dju1dif 9600 m1bits 15791 clsval2 21660 mretopd 21702 cmpfi 22018 llycmpkgen2 22160 pserdvlem2 25018 nbgrssvwo2 27146 finsumvtxdg2ssteplem1 27329 frgrwopreglem3 28095 iundifdifd 30315 iundifdif 30316 difres 30352 pmtrcnelor 30737 cycpmconjv 30786 cyc3conja 30801 sibfof 31600 eulerpartlemmf 31635 kur14lem2 32456 kur14lem6 32460 kur14lem7 32461 satfv1 32612 dfon4 33356 onint1 33799 bj-2upln1upl 34338 poimirlem8 34902 dfssr2 35741 prjspval2 39270 diophren 39417 nonrel 39951 dssmapntrcls 40485 salincl 42615 meaiuninc 42770 carageniuncllem1 42810 |
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