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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 585 | 1 ⊢ (𝜑 → (𝐹 ∘ 𝐺):𝐴⟶𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∘ ccom 5628 ⟶wf 6488 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-pr 5370 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-fun 6494 df-fn 6495 df-f 6496 |
| This theorem is referenced by: suppcoss 8150 mapen 9072 mapfienlem3 9313 mapfien 9314 cofsmo 10182 canthp1lem2 10567 gsumval3lem2 19872 psrass1lem 21922 psdmplcl 22138 mhmcompl 22355 comet 24488 dvcobr 25923 wrdpmcl 33013 gsumpart 33139 elrgspnlem1 33318 1arithidomlem2 33611 1arithidom 33612 mplvrpmlem 33702 mplvrpmfgalem 33703 mplvrpmga 33704 mplvrpmmhm 33705 mplvrpmrhm 33706 mplmonprod 33713 esplympl 33726 esplysply 33730 subfacp1lem5 35382 mapcod 42696 mhmcopsr 43006 selvvvval 43032 chnsubseqword 47324 upgrimwlklem4 48388 itcovalendof 49157 fucoid 49835 |
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