| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > fabex | Structured version Visualization version GIF version | ||
| Description: Existence of a set of functions. (Contributed by NM, 3-Dec-2007.) |
| Ref | Expression |
|---|---|
| fabex.1 | ⊢ 𝐴 ∈ V |
| fabex.2 | ⊢ 𝐵 ∈ V |
| fabex.3 | ⊢ 𝐹 = {𝑥 ∣ (𝑥:𝐴⟶𝐵 ∧ 𝜑)} |
| Ref | Expression |
|---|---|
| fabex | ⊢ 𝐹 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fabex.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | fabex.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | fabex.3 | . . 3 ⊢ 𝐹 = {𝑥 ∣ (𝑥:𝐴⟶𝐵 ∧ 𝜑)} | |
| 4 | 3 | fabexg 7977 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → 𝐹 ∈ V) |
| 5 | 1, 2, 4 | mp2an 705 | 1 ⊢ 𝐹 ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 = wceq 1570 ∈ wcel 2147 {cab 2741 Vcvv 3454 ⟶wf 6557 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5253 ax-pow 5332 ax-pr 5396 ax-un 7778 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5172 df-xp 5662 df-rel 5663 df-cnv 5664 df-dm 5666 df-rn 5667 df-fun 6563 df-fn 6564 df-f 6565 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |