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| Mirrors > Home > MPE Home > Th. List > fcod | Structured version Visualization version GIF version | ||
| Description: Composition of two mappings. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| fcod.1 | ⊢ (𝜑 → 𝐹:𝐵⟶𝐶) |
| fcod.2 | ⊢ (𝜑 → 𝐺:𝐴⟶𝐵) |
| Ref | Expression |
|---|---|
| fcod | ⊢ (𝜑 → (𝐹 ∘ 𝐺):𝐴⟶𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fcod.1 | . 2 ⊢ (𝜑 → 𝐹:𝐵⟶𝐶) | |
| 2 | fcod.2 | . 2 ⊢ (𝜑 → 𝐺:𝐴⟶𝐵) | |
| 3 | fco 6686 | . 2 ⊢ ((𝐹:𝐵⟶𝐶 ∧ 𝐺:𝐴⟶𝐵) → (𝐹 ∘ 𝐺):𝐴⟶𝐶) | |
| 4 | 1, 2, 3 | syl2anc 590 | 1 ⊢ (𝜑 → (𝐹 ∘ 𝐺):𝐴⟶𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∘ ccom 5629 ⟶wf 6488 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-pr 5369 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-sn 4563 df-pr 4565 df-op 4569 df-br 5080 df-opab 5142 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-fun 6494 df-fn 6495 df-f 6496 |
| This theorem is referenced by: suppcoss 8154 mapen 9076 mapfienlem3 9317 mapfien 9318 cofsmo 10189 canthp1lem2 10574 gsumval3lem2 19879 psrass1lem 21915 mhmcompl 22104 selvvvval 22125 psdmplcl 22157 comet 24503 dvcobr 25938 wrdpmcl 33024 gsumpart 33151 elrgspnlem1 33330 1arithidomlem2 33626 1arithidom 33627 mplasclco 33707 mplvrpmlem 33734 mplvrpmfgalem 33735 mplvrpmga 33736 mplvrpmmhm 33737 mplvrpmrhm 33738 mplmonprod 33745 esplympl 33758 esplysply 33762 subfacp1lem5 35419 mapcod 42734 mhmcopsr 43037 chnsubseqword 47330 upgrimwlklem4 48398 itcovalendof 49167 fucoid 49845 |
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