| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4971 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 = 𝐶 → ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶) | |
| 2 | iuneq2i.1 | . 2 ⊢ (𝑥 ∈ 𝐴 → 𝐵 = 𝐶) | |
| 3 | 1, 2 | mprg 3082 | 1 ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 = ∪ 𝑥 ∈ 𝐴 𝐶 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 ∪ ciun 4951 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-v 3452 df-ss 3916 df-iun 4953 |
| This theorem is used by: dfiunv2 4992 iunrab 5011 iunin1 5030 2iunin 5036 resiun1 5992 resiun2 5993 dfimafn2 6942 dfmpt 7141 funiunfv 7246 fpar 8114 onovuni 8332 uniqs 8774 marypha2lem2 9407 alephlim 10071 cfsmolem 10273 ituniiun 10425 indval2 12248 imasdsval2 17603 lpival 21556 pzriprnglem10 21704 pzriprnglem11 21705 cmpsublem 23625 txbasval 23833 uniioombllem2 25812 uniioombllem4 25815 volsup2 25834 itg1addlem5 25929 itg1climres 25943 sigaclfu2 34632 measvuni 34726 fmla 35961 ttciun 37134 rabiun 38353 mblfinlem2 38408 voliunnfl 38414 cnambfre 38418 trclrelexplem 44552 cotrclrcl 44583 dfcoll2 45077 hoicvr 47377 hoidmv1le 47423 hoidmvle 47429 hspmbllem2 47456 smflimlem3 47602 smflimlem4 47603 smflim 47606 dfaimafn2 48055 xpiun 49075 |
| Copyright terms: Public domain | W3C validator |