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| Mirrors > Home > MPE Home > Th. List > iuneq2i | Structured version Visualization version GIF version | ||
| Description: Equality inference for indexed union. (Contributed by NM, 22-Oct-2003.) |
| Ref | Expression |
|---|---|
| iuneq2i.1 | ⊢ (𝑥 ∈ 𝐴 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| iuneq2i | ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iuneq2 4966 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 = 𝐶 → ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶) | |
| 2 | iuneq2i.1 | . 2 ⊢ (𝑥 ∈ 𝐴 → 𝐵 = 𝐶) | |
| 3 | 1, 2 | mprg 3057 | 1 ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 ∪ ciun 4946 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3061 df-v 3442 df-ss 3918 df-iun 4948 |
| This theorem is referenced by: dfiunv2 4989 iunrab 5008 iunin1 5027 2iunin 5031 resiun1 5958 resiun2 5959 dfimafn2 6897 dfmpt 7089 funiunfv 7194 fpar 8058 onovuni 8274 uniqs 8711 marypha2lem2 9339 alephlim 9977 cfsmolem 10180 ituniiun 10332 imasdsval2 17437 lpival 21279 pzriprnglem10 21445 pzriprnglem11 21446 cmpsublem 23343 txbasval 23550 uniioombllem2 25540 uniioombllem4 25543 volsup2 25562 itg1addlem5 25657 itg1climres 25671 indval2 32933 sigaclfu2 34278 measvuni 34371 fmla 35575 rabiun 37794 mblfinlem2 37859 voliunnfl 37865 cnambfre 37869 trclrelexplem 43952 cotrclrcl 43983 dfcoll2 44493 hoicvr 46792 hoidmv1le 46838 hoidmvle 46844 hspmbllem2 46871 smflimlem3 47017 smflimlem4 47018 smflim 47021 dfaimafn2 47412 xpiun 48404 |
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