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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 4162 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷)) | |
| 4 | 1, 2, 3 | mp2an 705 | 1 ⊢ (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∪ cun 4149 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-un 4151 |
| This theorem is used by: indir 4231 difundir 4236 difindi 4237 dfsymdif3 4251 unrab 4260 rabun2 4269 elnelun 4342 dfif6 4484 dfif3 4496 dfif5 4498 symdif0 5044 symdifid 5046 unopab 5184 xpundi 5719 xpundir 5720 xpun 5724 dmun 5891 resundi 5983 resundir 5984 cnvun 6132 rnun 6135 imaundi 6140 imaundir 6141 dmtpop 6219 coundi 6248 coundir 6249 unidmrn 6282 dfdm2 6284 predun 6331 mptun 6685 partfun 6686 resasplit 6752 fresaun 6753 fresaunres2 6754 residpr 7146 fpr 7158 sbthlem5 9110 djuassen 10257 indval2 12325 indconst0 12332 fz0to3un2pr 13763 fz0to4untppr 13764 fz0to5un2tp 13765 fzo0to42pr 13888 hashgval 14477 hashinf 14479 relexpcnv 15188 bpoly3 16224 vdwlem6 17164 setsres 17356 lefld 18766 opsrtoslem1 22364 volun 25866 nosupcbv 28059 noinfcbv 28074 lrold 28283 addsval2 28349 addcuts 28364 addsunif 28388 addbday 28404 mulsval2 28497 muls01 28498 mulsproplem2 28503 mulsproplem3 28504 mulsproplem4 28505 mulcut 28518 mulsunif 28536 addsdilem1 28537 addsdilem2 28538 mulsasslem1 28549 mulsasslem2 28550 mulsunif2 28556 precsexlemcbv 28592 onaddscl 28663 onmulscl 28664 n0cut 28720 twocut 28809 bdaypw2n0bndlem 28849 0reno 28882 1reno 28883 ex-dif 31024 ex-in 31026 ex-pw 31030 ex-xp 31037 ex-cnv 31038 ex-rn 31041 fzodif1 33384 ordtprsuni 34551 sigaclfu2 34753 eulerpartgbij 35004 subfacp1lem1 35944 subfacp1lem5 35949 fmla1 36152 fixun 36671 refssfne 37146 onint1 37237 ttcun 37300 bj-pr1un 37916 bj-pr21val 37926 bj-pr2un 37930 bj-pr22val 37932 poimirlem16 38555 poimirlem19 38558 itg2addnclem2 38591 iblabsnclem 38602 dfproplem 38642 dfsucmap3 39396 redvmptabs 43412 df3o3 44316 rclexi 44615 rtrclex 44617 cnvrcl0 44625 dfrtrcl5 44629 dfrcl2 44674 dfrcl4 44676 iunrelexp0 44702 relexpiidm 44704 corclrcl 44707 relexp01min 44713 corcltrcl 44739 cotrclrcl 44742 frege131d 44764 rnfdmpr 48351 31prm 48682 |
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