| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > homahom2 | Structured version Visualization version GIF version | ||
| Description: The second component of an arrow is the corresponding morphism (without the domain/codomain tag). (Contributed by Mario Carneiro, 11-Jan-2017.) |
| Ref | Expression |
|---|---|
| homahom.h | ⊢ 𝐻 = (Homa‘𝐶) |
| homahom.j | ⊢ 𝐽 = (Hom ‘𝐶) |
| Ref | Expression |
|---|---|
| homahom2 | ⊢ (𝑍(𝑋𝐻𝑌)𝐹 → 𝐹 ∈ (𝑋𝐽𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-br 5109 | . . . 4 ⊢ (𝑍(𝑋𝐻𝑌)𝐹 ↔ 〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌)) | |
| 2 | homahom.h | . . . . 5 ⊢ 𝐻 = (Homa‘𝐶) | |
| 3 | eqid 2762 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 4 | 2 | homarcl 18091 | . . . . 5 ⊢ (〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌) → 𝐶 ∈ Cat) |
| 5 | homahom.j | . . . . 5 ⊢ 𝐽 = (Hom ‘𝐶) | |
| 6 | 2, 3 | homarcl2 18098 | . . . . . 6 ⊢ (〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌) → (𝑋 ∈ (Base‘𝐶) ∧ 𝑌 ∈ (Base‘𝐶))) |
| 7 | 6 | simpld 499 | . . . . 5 ⊢ (〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌) → 𝑋 ∈ (Base‘𝐶)) |
| 8 | 6 | simprd 500 | . . . . 5 ⊢ (〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌) → 𝑌 ∈ (Base‘𝐶)) |
| 9 | 2, 3, 4, 5, 7, 8 | elhoma 18095 | . . . 4 ⊢ (〈𝑍, 𝐹〉 ∈ (𝑋𝐻𝑌) → (𝑍(𝑋𝐻𝑌)𝐹 ↔ (𝑍 = 〈𝑋, 𝑌〉 ∧ 𝐹 ∈ (𝑋𝐽𝑌)))) |
| 10 | 1, 9 | sylbi 220 | . . 3 ⊢ (𝑍(𝑋𝐻𝑌)𝐹 → (𝑍(𝑋𝐻𝑌)𝐹 ↔ (𝑍 = 〈𝑋, 𝑌〉 ∧ 𝐹 ∈ (𝑋𝐽𝑌)))) |
| 11 | 10 | ibi 270 | . 2 ⊢ (𝑍(𝑋𝐻𝑌)𝐹 → (𝑍 = 〈𝑋, 𝑌〉 ∧ 𝐹 ∈ (𝑋𝐽𝑌))) |
| 12 | 11 | simprd 500 | 1 ⊢ (𝑍(𝑋𝐻𝑌)𝐹 → 𝐹 ∈ (𝑋𝐽𝑌)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1569 ∈ wcel 2142 〈cop 4594 class class class wbr 5108 ‘cfv 6536 (class class class)co 7412 Basecbs 17275 Hom chom 17327 Homachoma 18086 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7415 df-homa 18089 |
| This theorem is used by: homahom 18102 |
| Copyright terms: Public domain | W3C validator |