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| Mirrors > Home > MPE Home > Th. List > fthi | Structured version Visualization version GIF version | ||
| Description: The morphism map of a faithful functor is an injection. (Contributed by Mario Carneiro, 27-Jan-2017.) |
| Ref | Expression |
|---|---|
| isfth.b | ⊢ 𝐵 = (Base‘𝐶) |
| isfth.h | ⊢ 𝐻 = (Hom ‘𝐶) |
| isfth.j | ⊢ 𝐽 = (Hom ‘𝐷) |
| fthf1.f | ⊢ (𝜑 → 𝐹(𝐶 Faith 𝐷)𝐺) |
| fthf1.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| fthf1.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| fthi.r | ⊢ (𝜑 → 𝑅 ∈ (𝑋𝐻𝑌)) |
| fthi.s | ⊢ (𝜑 → 𝑆 ∈ (𝑋𝐻𝑌)) |
| Ref | Expression |
|---|---|
| fthi | ⊢ (𝜑 → (((𝑋𝐺𝑌)‘𝑅) = ((𝑋𝐺𝑌)‘𝑆) ↔ 𝑅 = 𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isfth.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
| 2 | isfth.h | . . 3 ⊢ 𝐻 = (Hom ‘𝐶) | |
| 3 | isfth.j | . . 3 ⊢ 𝐽 = (Hom ‘𝐷) | |
| 4 | fthf1.f | . . 3 ⊢ (𝜑 → 𝐹(𝐶 Faith 𝐷)𝐺) | |
| 5 | fthf1.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 6 | fthf1.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 7 | 1, 2, 3, 4, 5, 6 | fthf1 18055 | . 2 ⊢ (𝜑 → (𝑋𝐺𝑌):(𝑋𝐻𝑌)–1-1→((𝐹‘𝑋)𝐽(𝐹‘𝑌))) |
| 8 | fthi.r | . 2 ⊢ (𝜑 → 𝑅 ∈ (𝑋𝐻𝑌)) | |
| 9 | fthi.s | . 2 ⊢ (𝜑 → 𝑆 ∈ (𝑋𝐻𝑌)) | |
| 10 | f1fveq 7254 | . 2 ⊢ (((𝑋𝐺𝑌):(𝑋𝐻𝑌)–1-1→((𝐹‘𝑋)𝐽(𝐹‘𝑌)) ∧ (𝑅 ∈ (𝑋𝐻𝑌) ∧ 𝑆 ∈ (𝑋𝐻𝑌))) → (((𝑋𝐺𝑌)‘𝑅) = ((𝑋𝐺𝑌)‘𝑆) ↔ 𝑅 = 𝑆)) | |
| 11 | 7, 8, 9, 10 | syl12anc 850 | 1 ⊢ (𝜑 → (((𝑋𝐺𝑌)‘𝑅) = ((𝑋𝐺𝑌)‘𝑆) ↔ 𝑅 = 𝑆)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2145 class class class wbr 5102 –1-1→wf1 6524 ‘cfv 6527 (class class class)co 7408 Basecbs 17348 Hom chom 17400 Faith cfth 18041 |
| 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 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 |
| 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-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fv 6535 df-ov 7411 df-oprab 7412 df-mpo 7413 df-1st 7984 df-2nd 7985 df-map 8827 df-ixp 8904 df-func 17994 df-fth 18043 |
| This theorem is used by: fthsect 18063 fthmon 18065 fthcomf 50187 |
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