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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 4110 | . 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 1570 ∪ cun 3897 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-un 3904 |
| This theorem is used by: indir 4232 difundir 4237 difindi 4238 dfsymdif3 4252 unrab 4261 rabun2 4270 elnelun 4343 dfif6 4485 dfif3 4497 dfif5 4499 symdif0 5045 symdifid 5047 unopab 5185 xpundi 5724 xpundir 5725 xpun 5729 dmun 5894 resundi 5986 resundir 5987 cnvun 6133 rnun 6136 imaundi 6141 imaundir 6142 dmtpop 6214 coundi 6243 coundir 6244 unidmrn 6277 dfdm2 6279 predun 6326 mptun 6679 partfun 6680 resasplit 6746 fresaun 6747 fresaunres2 6748 residpr 7140 fpr 7152 sbthlem5 9092 djuassen 10184 indval2 12250 indconst0 12257 fz0to3un2pr 13687 fz0to4untppr 13688 fz0to5un2tp 13689 fzo0to42pr 13812 hashgval 14400 hashinf 14402 relexpcnv 15111 bpoly3 16147 vdwlem6 17081 setsres 17273 lefld 18683 opsrtoslem1 22274 volun 25776 nosupcbv 27941 noinfcbv 27956 lrold 28165 addsval2 28231 addcuts 28246 addsunif 28270 addbday 28286 mulsval2 28379 muls01 28380 mulsproplem2 28385 mulsproplem3 28386 mulsproplem4 28387 mulcut 28400 mulsunif 28418 addsdilem1 28419 addsdilem2 28420 mulsasslem1 28431 mulsasslem2 28432 mulsunif2 28438 precsexlemcbv 28474 onaddscl 28545 onmulscl 28546 n0cut 28602 twocut 28691 bdaypw2n0bndlem 28731 0reno 28764 1reno 28765 ex-dif 30906 ex-in 30908 ex-pw 30912 ex-xp 30919 ex-cnv 30920 ex-rn 30923 fzodif1 33266 ordtprsuni 34432 sigaclfu2 34634 eulerpartgbij 34886 subfacp1lem1 35761 subfacp1lem5 35766 fmla1 35969 fixun 36489 refssfne 36980 onint1 37071 ttcun 37134 bj-pr1un 37750 bj-pr21val 37760 bj-pr2un 37764 bj-pr22val 37766 poimirlem16 38388 poimirlem19 38391 itg2addnclem2 38424 iblabsnclem 38435 dfsucmap3 39214 redvmptabs 43238 df3o3 44158 rclexi 44458 rtrclex 44460 cnvrcl0 44468 dfrtrcl5 44472 dfrcl2 44517 dfrcl4 44519 iunrelexp0 44545 relexpiidm 44547 corclrcl 44550 relexp01min 44556 corcltrcl 44582 cotrclrcl 44585 frege131d 44607 rnfdmpr 48172 31prm 48503 |
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