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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 4103 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷)) | |
| 4 | 1, 2, 3 | mp2an 693 | 1 ⊢ (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∪ cun 3887 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3431 df-un 3894 |
| This theorem is referenced by: indir 4226 difundir 4231 difindi 4232 dfsymdif3 4246 unrab 4255 rabun2 4264 elnelun 4333 dfif6 4469 dfif3 4481 dfif5 4483 symdif0 5027 symdifid 5029 unopab 5165 xpundi 5700 xpundir 5701 xpun 5705 dmun 5865 resundi 5958 resundir 5959 cnvun 6106 rnun 6109 imaundi 6113 imaundir 6114 dmtpop 6182 coundi 6211 coundir 6212 unidmrn 6243 dfdm2 6245 predun 6292 mptun 6644 partfun 6645 resasplit 6710 fresaun 6711 fresaunres2 6712 residpr 7096 fpr 7108 sbthlem5 9029 djuassen 10101 indval2 12164 indconst0 12171 fz0to3un2pr 13583 fz0to4untppr 13584 fz0to5un2tp 13585 fzo0to42pr 13708 hashgval 14295 hashinf 14297 relexpcnv 14997 bpoly3 16023 vdwlem6 16957 setsres 17148 lefld 18558 opsrtoslem1 22033 volun 25512 nosupcbv 27666 noinfcbv 27681 lrold 27889 addsval2 27955 addcuts 27970 addsunif 27994 addbday 28010 mulsval2 28103 muls01 28104 mulsproplem2 28109 mulsproplem3 28110 mulsproplem4 28111 mulcut 28124 mulsunif 28142 addsdilem1 28143 addsdilem2 28144 mulsasslem1 28155 mulsasslem2 28156 mulsunif2 28162 precsexlemcbv 28198 onaddscl 28269 onmulscl 28270 n0cut 28326 twocut 28415 bdaypw2n0bndlem 28455 0reno 28488 1reno 28489 ex-dif 30493 ex-in 30495 ex-pw 30499 ex-xp 30506 ex-cnv 30507 ex-rn 30510 fzodif1 32865 ordtprsuni 34063 sigaclfu2 34265 eulerpartgbij 34516 subfacp1lem1 35361 subfacp1lem5 35366 fmla1 35569 fixun 36089 refssfne 36540 onint1 36631 ttcun 36694 bj-pr1un 37310 bj-pr21val 37320 bj-pr2un 37324 bj-pr22val 37326 poimirlem16 37957 poimirlem19 37960 itg2addnclem2 37993 iblabsnclem 38004 dfsucmap3 38784 redvmptabs 42792 df3o3 43742 rclexi 44042 rtrclex 44044 cnvrcl0 44052 dfrtrcl5 44056 dfrcl2 44101 dfrcl4 44103 iunrelexp0 44129 relexpiidm 44131 corclrcl 44134 relexp01min 44140 corcltrcl 44166 cotrclrcl 44169 frege131d 44191 rnfdmpr 47729 31prm 48060 |
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