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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 4104 | . 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 3888 |
| 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 2709 |
| 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 2716 df-cleq 2729 df-clel 2812 df-v 3432 df-un 3895 |
| This theorem is referenced by: indir 4227 difundir 4232 difindi 4233 dfsymdif3 4247 unrab 4256 rabun2 4265 elnelun 4334 dfif6 4470 dfif3 4482 dfif5 4484 symdif0 5028 symdifid 5030 unopab 5166 xpundi 5694 xpundir 5695 xpun 5699 dmun 5860 resundi 5953 resundir 5954 cnvun 6101 rnun 6104 imaundi 6108 imaundir 6109 dmtpop 6177 coundi 6206 coundir 6207 unidmrn 6238 dfdm2 6240 predun 6287 mptun 6639 partfun 6640 resasplit 6705 fresaun 6706 fresaunres2 6707 residpr 7091 fpr 7102 sbthlem5 9023 djuassen 10095 indval2 12158 indconst0 12165 fz0to3un2pr 13577 fz0to4untppr 13578 fz0to5un2tp 13579 fzo0to42pr 13702 hashgval 14289 hashinf 14291 relexpcnv 14991 bpoly3 16017 vdwlem6 16951 setsres 17142 lefld 18552 opsrtoslem1 22046 volun 25525 nosupcbv 27683 noinfcbv 27698 lrold 27906 addsval2 27972 addcuts 27987 addsunif 28011 addbday 28027 mulsval2 28120 muls01 28121 mulsproplem2 28126 mulsproplem3 28127 mulsproplem4 28128 mulcut 28141 mulsunif 28159 addsdilem1 28160 addsdilem2 28161 mulsasslem1 28172 mulsasslem2 28173 mulsunif2 28179 precsexlemcbv 28215 onaddscl 28286 onmulscl 28287 n0cut 28343 twocut 28432 bdaypw2n0bndlem 28472 0reno 28505 1reno 28506 ex-dif 30511 ex-in 30513 ex-pw 30517 ex-xp 30524 ex-cnv 30525 ex-rn 30528 fzodif1 32883 ordtprsuni 34082 sigaclfu2 34284 eulerpartgbij 34535 subfacp1lem1 35380 subfacp1lem5 35385 fmla1 35588 fixun 36108 refssfne 36559 onint1 36650 ttcun 36713 bj-pr1un 37329 bj-pr21val 37339 bj-pr2un 37343 bj-pr22val 37345 poimirlem16 37974 poimirlem19 37977 itg2addnclem2 38010 iblabsnclem 38021 dfsucmap3 38801 redvmptabs 42809 df3o3 43763 rclexi 44063 rtrclex 44065 cnvrcl0 44073 dfrtrcl5 44077 dfrcl2 44122 dfrcl4 44124 iunrelexp0 44150 relexpiidm 44152 corclrcl 44155 relexp01min 44161 corcltrcl 44187 cotrclrcl 44190 frege131d 44212 rnfdmpr 47744 31prm 48075 |
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