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Related theorems GIF version |
| Description: Existence of the class of values of a set. |
| Ref | Expression |
|---|---|
| fvclex.1 | ⊢ F ∈ V |
| Ref | Expression |
|---|---|
| fvclex | ⊢ {y∣∃x y = (F ‘x)} ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvclex.1 | . . . 4 ⊢ F ∈ V | |
| 2 | rnexg 2569 | . . . 4 ⊢ (F ∈ V → ran F ∈ V) | |
| 3 | 1, 2 | ax-mp 6 | . . 3 ⊢ ran F ∈ V |
| 4 | p0ex 1885 | . . 3 ⊢ {∅} ∈ V | |
| 5 | 3, 4 | unex 1949 | . 2 ⊢ (ran F ∪ {∅}) ∈ V |
| 6 | fvclss 2907 | . 2 ⊢ {y∣∃x y = (F ‘x)} ⊆ (ran F ∪ {∅}) | |
| 7 | 5, 6 | ssexi 1701 | 1 ⊢ {y∣∃x y = (F ‘x)} ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∃wex 678 {cab 1090 = wceq 1091 ∈ wcel 1092 Vcvv 1348 ∪ cun 1485 ∅c0 1707 {csn 1808 ran crn 2411 ‘cfv 2422 |
| This theorem is referenced by: fvresex 2909 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-xp 2424 df-cnv 2426 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fv 2438 |