| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > fvmptelcdm | Structured version Visualization version GIF version | ||
| Description: The value of a function at a point of its domain belongs to its codomain. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| fvmptelcdm.1 | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶) |
| Ref | Expression |
|---|---|
| fvmptelcdm | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvmptelcdm.1 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶) | |
| 2 | eqid 2760 | . . . 4 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 3 | 2 | fmpt 7103 | . . 3 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶 ↔ (𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶) |
| 4 | 1, 3 | sylibr 237 | . 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶) |
| 5 | 4 | r19.21bi 3254 | 1 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2145 ∀wral 3076 ↦ cmpt 5186 ⟶wf 6529 |
| 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-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-pr 5398 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-fun 6535 df-fn 6536 df-f 6537 |
| This theorem is used by: rlimmptrcl 15695 lo1mptrcl 15709 o1mptrcl 15710 frlmgsum 21985 uvcresum 22006 psrass1lem 22148 txcnp 23846 ptcnp 23848 ptcn 23853 cnmpt11 23889 cnmpt1t 23891 cnmpt12 23893 cnmptkp 23906 cnmptk1 23907 cnmptkk 23909 cnmptk1p 23911 cnmptk2 23912 cnmpt1plusg 24313 cnmpt1vsca 24420 cnmpt1ds 25069 cncfcompt2 25136 cncfmpt2ss 25144 cnmpt1ip 25475 divcncf 25675 mbfmptcl 25864 i1fposd 25935 itgss3 26042 dvmptcl 26186 dvmptco 26199 dvle 26234 dvfsumle 26248 dvfsumge 26249 dvmptrecl 26251 itgparts 26274 itgsubstlem 26275 itgsubst 26276 ulmss 26633 ulmdvlem2 26637 itgulm2 26645 logtayl 26897 intlewftc 42927 cncfcompt 46711 cncficcgt0 46716 itgsubsticclem 46803 sge0iunmptlemre 47243 hoicvrrex 47384 smfadd 47593 smfpimioompt 47614 |
| Copyright terms: Public domain | W3C validator |