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| Mirrors > Home > MPE Home > Th. List > uneq12i | Structured version Visualization version GIF version | ||
| Description: Equality inference for the union of two classes. (Contributed by NM, 12-Aug-2004.) (Proof shortened by Eric Schmidt, 26-Jan-2007.) |
| Ref | Expression |
|---|---|
| uneq1i.1 | ⊢ 𝐴 = 𝐵 |
| uneq12i.2 | ⊢ 𝐶 = 𝐷 |
| Ref | Expression |
|---|---|
| uneq12i | ⊢ (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uneq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
| 2 | uneq12i.2 | . 2 ⊢ 𝐶 = 𝐷 | |
| 3 | uneq12 4113 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷)) | |
| 4 | 1, 2, 3 | mp2an 692 | 1 ⊢ (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 ∪ cun 3897 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-v 3440 df-un 3904 |
| This theorem is referenced by: indir 4236 difundir 4241 difindi 4242 dfsymdif3 4256 unrab 4265 rabun2 4274 elnelun 4343 dfif6 4480 dfif3 4492 dfif5 4494 symdif0 5038 symdifid 5040 unopab 5176 xpundi 5691 xpundir 5692 xpun 5696 dmun 5857 resundi 5950 resundir 5951 cnvun 6098 rnun 6101 imaundi 6105 imaundir 6106 dmtpop 6174 coundi 6203 coundir 6204 unidmrn 6235 dfdm2 6237 predun 6284 mptun 6636 partfun 6637 resasplit 6702 fresaun 6703 fresaunres2 6704 residpr 7086 fpr 7097 sbthlem5 9017 djuassen 10087 fz0to3un2pr 13543 fz0to4untppr 13544 fz0to5un2tp 13545 fzo0to42pr 13667 hashgval 14254 hashinf 14256 relexpcnv 14956 bpoly3 15979 vdwlem6 16912 setsres 17103 lefld 18513 opsrtoslem1 22008 volun 25500 nosupcbv 27668 noinfcbv 27683 lrold 27869 addsval2 27933 addscut 27948 addsunif 27972 addsbday 27987 mulsval2 28080 muls01 28081 mulsproplem2 28086 mulsproplem3 28087 mulsproplem4 28088 mulscut 28101 mulsunif 28119 addsdilem1 28120 addsdilem2 28121 mulsasslem1 28132 mulsasslem2 28133 mulsunif2 28139 precsexlemcbv 28174 onaddscl 28241 onmulscl 28242 n0scut 28294 1p1e2s 28374 twocut 28381 bdaypw2n0s 28420 0reno 28441 1reno 28442 ex-dif 30447 ex-in 30449 ex-pw 30453 ex-xp 30460 ex-cnv 30461 ex-rn 30464 fzodif1 32821 indval2 32882 indconst0 32888 ordtprsuni 34025 sigaclfu2 34227 eulerpartgbij 34478 subfacp1lem1 35322 subfacp1lem5 35327 fmla1 35530 fixun 36050 refssfne 36501 onint1 36592 bj-pr1un 37147 bj-pr21val 37157 bj-pr2un 37161 bj-pr22val 37163 poimirlem16 37776 poimirlem19 37779 itg2addnclem2 37812 iblabsnclem 37823 dfsucmap3 38576 redvmptabs 42557 df3o3 43498 rclexi 43798 rtrclex 43800 cnvrcl0 43808 dfrtrcl5 43812 dfrcl2 43857 dfrcl4 43859 iunrelexp0 43885 relexpiidm 43887 corclrcl 43890 relexp01min 43896 corcltrcl 43922 cotrclrcl 43925 frege131d 43947 rnfdmpr 47469 31prm 47785 |
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