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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 4976 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 = 𝐶 → ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶) | |
| 2 | iuneq2i.1 | . 2 ⊢ (𝑥 ∈ 𝐴 → 𝐵 = 𝐶) | |
| 3 | 1, 2 | mprg 3085 | 1 ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 ∪ ciun 4956 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-v 3457 df-ss 3922 df-iun 4958 |
| This theorem is referenced by: dfiunv2 4998 iunrab 5017 iunin1 5036 2iunin 5042 resiun1 5998 resiun2 5999 dfimafn2 6944 dfmpt 7140 funiunfv 7246 fpar 8107 onovuni 8325 uniqs 8767 marypha2lem2 9392 alephlim 10047 cfsmolem 10249 ituniiun 10401 indval2 12218 imasdsval2 17565 lpival 21492 pzriprnglem10 21640 pzriprnglem11 21641 cmpsublem 23556 txbasval 23763 uniioombllem2 25742 uniioombllem4 25745 volsup2 25764 itg1addlem5 25859 itg1climres 25873 sigaclfu2 34511 measvuni 34604 fmla 35873 ttciun 37025 rabiun 38244 mblfinlem2 38309 voliunnfl 38315 cnambfre 38319 trclrelexplem 44437 cotrclrcl 44468 dfcoll2 44962 hoicvr 47262 hoidmv1le 47308 hoidmvle 47314 hspmbllem2 47341 smflimlem3 47487 smflimlem4 47488 smflim 47491 dfaimafn2 47903 xpiun 48923 |
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