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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 2733 |
| 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 2740 df-cleq 2753 df-clel 2836 df-v 3453 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 5720 xpundir 5721 xpun 5725 dmun 5892 resundi 5984 resundir 5985 cnvun 6133 rnun 6136 imaundi 6141 imaundir 6142 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 38554 poimirlem19 38557 itg2addnclem2 38590 iblabsnclem 38601 dfproplem 38641 dfsucmap3 39395 redvmptabs 43411 df3o3 44315 rclexi 44614 rtrclex 44616 cnvrcl0 44624 dfrtrcl5 44628 dfrcl2 44673 dfrcl4 44675 iunrelexp0 44701 relexpiidm 44703 corclrcl 44706 relexp01min 44712 corcltrcl 44738 cotrclrcl 44741 frege131d 44763 rnfdmpr 48350 31prm 48681 |
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