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| Mirrors > Home > MPE Home > Th. List > monhom | Structured version Visualization version GIF version | ||
| Description: A monomorphism is a morphism. (Contributed by Mario Carneiro, 2-Jan-2017.) |
| Ref | Expression |
|---|---|
| ismon.b | ⊢ 𝐵 = (Base‘𝐶) |
| ismon.h | ⊢ 𝐻 = (Hom ‘𝐶) |
| ismon.o | ⊢ · = (comp‘𝐶) |
| ismon.s | ⊢ 𝑀 = (Mono‘𝐶) |
| ismon.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
| ismon.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| ismon.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| monhom | ⊢ (𝜑 → (𝑋𝑀𝑌) ⊆ (𝑋𝐻𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ismon.b | . . . 4 ⊢ 𝐵 = (Base‘𝐶) | |
| 2 | ismon.h | . . . 4 ⊢ 𝐻 = (Hom ‘𝐶) | |
| 3 | ismon.o | . . . 4 ⊢ · = (comp‘𝐶) | |
| 4 | ismon.s | . . . 4 ⊢ 𝑀 = (Mono‘𝐶) | |
| 5 | ismon.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 6 | ismon.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 7 | ismon.y | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 8 | 1, 2, 3, 4, 5, 6, 7 | ismon 17822 | . . 3 ⊢ (𝜑 → (𝑓 ∈ (𝑋𝑀𝑌) ↔ (𝑓 ∈ (𝑋𝐻𝑌) ∧ ∀𝑧 ∈ 𝐵 Fun ◡(𝑔 ∈ (𝑧𝐻𝑋) ↦ (𝑓(〈𝑧, 𝑋〉 · 𝑌)𝑔))))) |
| 9 | simpl 488 | . . 3 ⊢ ((𝑓 ∈ (𝑋𝐻𝑌) ∧ ∀𝑧 ∈ 𝐵 Fun ◡(𝑔 ∈ (𝑧𝐻𝑋) ↦ (𝑓(〈𝑧, 𝑋〉 · 𝑌)𝑔))) → 𝑓 ∈ (𝑋𝐻𝑌)) | |
| 10 | 8, 9 | biimtrdi 256 | . 2 ⊢ (𝜑 → (𝑓 ∈ (𝑋𝑀𝑌) → 𝑓 ∈ (𝑋𝐻𝑌))) |
| 11 | 10 | ssrdv 3937 | 1 ⊢ (𝜑 → (𝑋𝑀𝑌) ⊆ (𝑋𝐻𝑌)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3076 ⊆ wss 3899 〈cop 4590 ↦ cmpt 5186 ◡ccnv 5654 Fun wfun 6527 ‘cfv 6533 (class class class)co 7413 Basecbs 17301 Hom chom 17353 compcco 17354 Catccat 17752 Monocmon 17817 |
| 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-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 |
| 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-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 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-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-ov 7416 df-oprab 7417 df-mpo 7418 df-1st 7986 df-2nd 7987 df-mon 17819 |
| This theorem is used by: setcmon 18176 |
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