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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 4093 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷)) | |
| 4 | 1, 2, 3 | mp2an 698 | 1 ⊢ (𝐴 ∪ 𝐶) = (𝐵 ∪ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1547 ∪ cun 3881 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-v 3433 df-un 3888 |
| This theorem is referenced by: indir 4214 difundir 4219 difindi 4220 dfsymdif3 4234 unrab 4243 rabun2 4252 elnelun 4321 dfif6 4457 dfif3 4469 dfif5 4471 symdif0 5014 symdifid 5016 unopab 5152 xpundi 5687 xpundir 5688 xpun 5692 dmun 5852 resundi 5945 resundir 5946 cnvun 6093 rnun 6096 imaundi 6100 imaundir 6101 dmtpop 6169 coundi 6198 coundir 6199 unidmrn 6230 dfdm2 6232 predun 6279 mptun 6631 partfun 6632 resasplit 6697 fresaun 6698 fresaunres2 6699 residpr 7085 fpr 7097 sbthlem5 9019 djuassen 10092 indval2 12155 indconst0 12162 fz0to3un2pr 13574 fz0to4untppr 13575 fz0to5un2tp 13576 fzo0to42pr 13699 hashgval 14286 hashinf 14288 relexpcnv 14988 bpoly3 16014 vdwlem6 16948 setsres 17139 lefld 18549 opsrtoslem1 22031 volun 25530 nosupcbv 27684 noinfcbv 27699 lrold 27907 addsval2 27973 addcuts 27988 addsunif 28012 addbday 28028 mulsval2 28121 muls01 28122 mulsproplem2 28127 mulsproplem3 28128 mulsproplem4 28129 mulcut 28142 mulsunif 28160 addsdilem1 28161 addsdilem2 28162 mulsasslem1 28173 mulsasslem2 28174 mulsunif2 28180 precsexlemcbv 28216 onaddscl 28287 onmulscl 28288 n0cut 28344 twocut 28433 bdaypw2n0bndlem 28473 0reno 28506 1reno 28507 ex-dif 30511 ex-in 30513 ex-pw 30517 ex-xp 30524 ex-cnv 30525 ex-rn 30528 fzodif1 32884 ordtprsuni 34103 sigaclfu2 34305 eulerpartgbij 34556 subfacp1lem1 35407 subfacp1lem5 35412 fmla1 35615 fixun 36135 refssfne 36586 onint1 36677 ttcun 36740 bj-pr1un 37356 bj-pr21val 37366 bj-pr2un 37370 bj-pr22val 37372 poimirlem16 38003 poimirlem19 38006 itg2addnclem2 38039 iblabsnclem 38050 dfsucmap3 38830 redvmptabs 42837 df3o3 43759 rclexi 44059 rtrclex 44061 cnvrcl0 44069 dfrtrcl5 44073 dfrcl2 44118 dfrcl4 44120 iunrelexp0 44146 relexpiidm 44148 corclrcl 44151 relexp01min 44157 corcltrcl 44183 cotrclrcl 44186 frege131d 44208 rnfdmpr 47744 31prm 48075 |
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