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Mirrors > Home > MPE Home > Th. List > idahom | Structured version Visualization version GIF version |
Description: Domain and codomain of the identity arrow. (Contributed by Mario Carneiro, 11-Jan-2017.) |
Ref | Expression |
---|---|
idafval.i | ⊢ 𝐼 = (Ida‘𝐶) |
idafval.b | ⊢ 𝐵 = (Base‘𝐶) |
idafval.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
idahom.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
idahom.h | ⊢ 𝐻 = (Homa‘𝐶) |
Ref | Expression |
---|---|
idahom | ⊢ (𝜑 → (𝐼‘𝑋) ∈ (𝑋𝐻𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | idafval.i | . . 3 ⊢ 𝐼 = (Ida‘𝐶) | |
2 | idafval.b | . . 3 ⊢ 𝐵 = (Base‘𝐶) | |
3 | idafval.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
4 | eqid 2794 | . . 3 ⊢ (Id‘𝐶) = (Id‘𝐶) | |
5 | idahom.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
6 | 1, 2, 3, 4, 5 | idaval 17147 | . 2 ⊢ (𝜑 → (𝐼‘𝑋) = 〈𝑋, 𝑋, ((Id‘𝐶)‘𝑋)〉) |
7 | idahom.h | . . 3 ⊢ 𝐻 = (Homa‘𝐶) | |
8 | eqid 2794 | . . 3 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
9 | 2, 8, 4, 3, 5 | catidcl 16782 | . . 3 ⊢ (𝜑 → ((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋)) |
10 | 7, 2, 3, 8, 5, 5, 9 | elhomai2 17123 | . 2 ⊢ (𝜑 → 〈𝑋, 𝑋, ((Id‘𝐶)‘𝑋)〉 ∈ (𝑋𝐻𝑋)) |
11 | 6, 10 | eqeltrd 2882 | 1 ⊢ (𝜑 → (𝐼‘𝑋) ∈ (𝑋𝐻𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1522 ∈ wcel 2080 〈cotp 4482 ‘cfv 6228 (class class class)co 7019 Basecbs 16312 Hom chom 16405 Catccat 16764 Idccid 16765 Homachoma 17112 Idacida 17142 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1778 ax-4 1792 ax-5 1889 ax-6 1948 ax-7 1993 ax-8 2082 ax-9 2090 ax-10 2111 ax-11 2125 ax-12 2140 ax-13 2343 ax-ext 2768 ax-rep 5084 ax-sep 5097 ax-nul 5104 ax-pow 5160 ax-pr 5224 ax-un 7322 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 843 df-3an 1082 df-tru 1525 df-ex 1763 df-nf 1767 df-sb 2042 df-mo 2575 df-eu 2611 df-clab 2775 df-cleq 2787 df-clel 2862 df-nfc 2934 df-ne 2984 df-ral 3109 df-rex 3110 df-reu 3111 df-rmo 3112 df-rab 3113 df-v 3438 df-sbc 3708 df-csb 3814 df-dif 3864 df-un 3866 df-in 3868 df-ss 3876 df-nul 4214 df-if 4384 df-pw 4457 df-sn 4475 df-pr 4477 df-op 4481 df-ot 4483 df-uni 4748 df-iun 4829 df-br 4965 df-opab 5027 df-mpt 5044 df-id 5351 df-xp 5452 df-rel 5453 df-cnv 5454 df-co 5455 df-dm 5456 df-rn 5457 df-res 5458 df-ima 5459 df-iota 6192 df-fun 6230 df-fn 6231 df-f 6232 df-f1 6233 df-fo 6234 df-f1o 6235 df-fv 6236 df-riota 6980 df-ov 7022 df-cat 16768 df-cid 16769 df-homa 17115 df-ida 17144 |
This theorem is referenced by: idadm 17150 idacd 17151 idaf 17152 arwlid 17161 arwrid 17162 |
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