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| Mirrors > Home > MPE Home > Th. List > mptrabex | Structured version Visualization version GIF version | ||
| Description: If the domain of a function given by maps-to notation is a class abstraction based on a set, the function is a set. (Contributed by AV, 16-Jul-2019.) (Revised by AV, 26-Mar-2021.) |
| Ref | Expression |
|---|---|
| mptrabex.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| mptrabex | ⊢ (𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} ↦ 𝐵) ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mptrabex.1 | . . 3 ⊢ 𝐴 ∈ V | |
| 2 | 1 | rabex 5314 | . 2 ⊢ {𝑦 ∈ 𝐴 ∣ 𝜑} ∈ V |
| 3 | 2 | mptex 7228 | 1 ⊢ (𝑥 ∈ {𝑦 ∈ 𝐴 ∣ 𝜑} ↦ 𝐵) ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2146 {crab 3419 Vcvv 3458 ↦ cmpt 5197 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pr 5409 |
| 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-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-ral 3083 df-rex 3093 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5561 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 |
| This theorem is used by: odzval 16876 pmtrfval 19551 dmdprd 20101 dprdval 20106 psrlidm 22148 psrass23l 22153 psrass23 22155 mplsubrg 22191 mplmonmul 22224 mplbas2 22230 fusgrfis 29717 wlksnwwlknvbij 30294 clwwlkvbij 30501 psrmonmul 33971 sitgval 34754 fwddifnval 36676 diafval 41846 dicfval 41990 |
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