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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 17915 | . . 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 3915 | 1 ⊢ (𝜑 → (𝑋𝑀𝑌) ⊆ (𝑋𝐻𝑌)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ∀wral 3076 ⊆ wss 3896 〈cop 4834 ↦ cmpt 5185 ◡ccnv 5649 Fun wfun 6535 ‘cfv 6541 (class class class)co 7422 Basecbs 17394 Hom chom 17446 compcco 17447 Catccat 17845 Monocmon 17910 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-ov 7425 df-oprab 7426 df-mpo 7427 df-1st 8003 df-2nd 8004 df-mon 17912 |
| This theorem is used by: setcmon 18269 |
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