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Mathbox for Stanislas Polu |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > fco2d | Structured version Visualization version GIF version |
Description: Natural deduction form of fco2 6774. (Contributed by Stanislas Polu, 9-Mar-2020.) |
Ref | Expression |
---|---|
fco2d.1 | ⊢ (𝜑 → 𝐺:𝐴⟶𝐵) |
fco2d.2 | ⊢ (𝜑 → (𝐹 ↾ 𝐵):𝐵⟶𝐶) |
Ref | Expression |
---|---|
fco2d | ⊢ (𝜑 → (𝐹 ∘ 𝐺):𝐴⟶𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fco2d.2 | . 2 ⊢ (𝜑 → (𝐹 ↾ 𝐵):𝐵⟶𝐶) | |
2 | fco2d.1 | . 2 ⊢ (𝜑 → 𝐺:𝐴⟶𝐵) | |
3 | fco2 6774 | . 2 ⊢ (((𝐹 ↾ 𝐵):𝐵⟶𝐶 ∧ 𝐺:𝐴⟶𝐵) → (𝐹 ∘ 𝐺):𝐴⟶𝐶) | |
4 | 1, 2, 3 | syl2anc 583 | 1 ⊢ (𝜑 → (𝐹 ∘ 𝐺):𝐴⟶𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↾ cres 5702 ∘ ccom 5704 ⟶wf 6569 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-sep 5317 ax-nul 5324 ax-pr 5447 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ral 3068 df-rex 3077 df-rab 3444 df-v 3490 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-nul 4353 df-if 4549 df-sn 4649 df-pr 4651 df-op 4655 df-br 5167 df-opab 5229 df-id 5593 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-fun 6575 df-fn 6576 df-f 6577 |
This theorem is referenced by: extoimad 44126 imo72b2lem0 44127 imo72b2lem2 44129 imo72b2lem1 44131 imo72b2 44134 |
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