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Mirrors > Home > MPE Home > Th. List > smndex1gid | Structured version Visualization version GIF version |
Description: The composition of a constant function (𝐺‘𝐾) with another endofunction on ℕ0 results in (𝐺‘𝐾) itself. (Contributed by AV, 14-Feb-2024.) |
Ref | Expression |
---|---|
smndex1ibas.m | ⊢ 𝑀 = (EndoFMnd‘ℕ0) |
smndex1ibas.n | ⊢ 𝑁 ∈ ℕ |
smndex1ibas.i | ⊢ 𝐼 = (𝑥 ∈ ℕ0 ↦ (𝑥 mod 𝑁)) |
smndex1ibas.g | ⊢ 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛)) |
Ref | Expression |
---|---|
smndex1gid | ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → ((𝐺‘𝐾) ∘ 𝐹) = (𝐺‘𝐾)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | smndex1ibas.g | . . . . . . . 8 ⊢ 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛)) | |
2 | 1 | a1i 11 | . . . . . . 7 ⊢ (𝐾 ∈ (0..^𝑁) → 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛))) |
3 | id 22 | . . . . . . . . 9 ⊢ (𝑛 = 𝐾 → 𝑛 = 𝐾) | |
4 | 3 | mpteq2dv 5162 | . . . . . . . 8 ⊢ (𝑛 = 𝐾 → (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑥 ∈ ℕ0 ↦ 𝐾)) |
5 | 4 | adantl 484 | . . . . . . 7 ⊢ ((𝐾 ∈ (0..^𝑁) ∧ 𝑛 = 𝐾) → (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑥 ∈ ℕ0 ↦ 𝐾)) |
6 | id 22 | . . . . . . 7 ⊢ (𝐾 ∈ (0..^𝑁) → 𝐾 ∈ (0..^𝑁)) | |
7 | nn0ex 11904 | . . . . . . . . 9 ⊢ ℕ0 ∈ V | |
8 | 7 | mptex 6986 | . . . . . . . 8 ⊢ (𝑥 ∈ ℕ0 ↦ 𝐾) ∈ V |
9 | 8 | a1i 11 | . . . . . . 7 ⊢ (𝐾 ∈ (0..^𝑁) → (𝑥 ∈ ℕ0 ↦ 𝐾) ∈ V) |
10 | 2, 5, 6, 9 | fvmptd 6775 | . . . . . 6 ⊢ (𝐾 ∈ (0..^𝑁) → (𝐺‘𝐾) = (𝑥 ∈ ℕ0 ↦ 𝐾)) |
11 | 10 | adantl 484 | . . . . 5 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → (𝐺‘𝐾) = (𝑥 ∈ ℕ0 ↦ 𝐾)) |
12 | 11 | adantr 483 | . . . 4 ⊢ (((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) ∧ 𝑦 ∈ ℕ0) → (𝐺‘𝐾) = (𝑥 ∈ ℕ0 ↦ 𝐾)) |
13 | eqidd 2822 | . . . 4 ⊢ ((((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) ∧ 𝑦 ∈ ℕ0) ∧ 𝑥 = (𝐹‘𝑦)) → 𝐾 = 𝐾) | |
14 | smndex1ibas.m | . . . . . . . 8 ⊢ 𝑀 = (EndoFMnd‘ℕ0) | |
15 | eqid 2821 | . . . . . . . 8 ⊢ (Base‘𝑀) = (Base‘𝑀) | |
16 | 14, 15 | efmndbasf 18040 | . . . . . . 7 ⊢ (𝐹 ∈ (Base‘𝑀) → 𝐹:ℕ0⟶ℕ0) |
17 | ffvelrn 6849 | . . . . . . . 8 ⊢ ((𝐹:ℕ0⟶ℕ0 ∧ 𝑦 ∈ ℕ0) → (𝐹‘𝑦) ∈ ℕ0) | |
18 | 17 | ex 415 | . . . . . . 7 ⊢ (𝐹:ℕ0⟶ℕ0 → (𝑦 ∈ ℕ0 → (𝐹‘𝑦) ∈ ℕ0)) |
19 | 16, 18 | syl 17 | . . . . . 6 ⊢ (𝐹 ∈ (Base‘𝑀) → (𝑦 ∈ ℕ0 → (𝐹‘𝑦) ∈ ℕ0)) |
20 | 19 | adantr 483 | . . . . 5 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → (𝑦 ∈ ℕ0 → (𝐹‘𝑦) ∈ ℕ0)) |
21 | 20 | imp 409 | . . . 4 ⊢ (((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) ∧ 𝑦 ∈ ℕ0) → (𝐹‘𝑦) ∈ ℕ0) |
22 | simplr 767 | . . . 4 ⊢ (((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) ∧ 𝑦 ∈ ℕ0) → 𝐾 ∈ (0..^𝑁)) | |
23 | 12, 13, 21, 22 | fvmptd 6775 | . . 3 ⊢ (((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) ∧ 𝑦 ∈ ℕ0) → ((𝐺‘𝐾)‘(𝐹‘𝑦)) = 𝐾) |
24 | 23 | mpteq2dva 5161 | . 2 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → (𝑦 ∈ ℕ0 ↦ ((𝐺‘𝐾)‘(𝐹‘𝑦))) = (𝑦 ∈ ℕ0 ↦ 𝐾)) |
25 | smndex1ibas.n | . . . . 5 ⊢ 𝑁 ∈ ℕ | |
26 | smndex1ibas.i | . . . . 5 ⊢ 𝐼 = (𝑥 ∈ ℕ0 ↦ (𝑥 mod 𝑁)) | |
27 | 14, 25, 26, 1 | smndex1gbas 18067 | . . . 4 ⊢ (𝐾 ∈ (0..^𝑁) → (𝐺‘𝐾) ∈ (Base‘𝑀)) |
28 | 14, 15 | efmndbasf 18040 | . . . 4 ⊢ ((𝐺‘𝐾) ∈ (Base‘𝑀) → (𝐺‘𝐾):ℕ0⟶ℕ0) |
29 | 27, 28 | syl 17 | . . 3 ⊢ (𝐾 ∈ (0..^𝑁) → (𝐺‘𝐾):ℕ0⟶ℕ0) |
30 | fcompt 6895 | . . 3 ⊢ (((𝐺‘𝐾):ℕ0⟶ℕ0 ∧ 𝐹:ℕ0⟶ℕ0) → ((𝐺‘𝐾) ∘ 𝐹) = (𝑦 ∈ ℕ0 ↦ ((𝐺‘𝐾)‘(𝐹‘𝑦)))) | |
31 | 29, 16, 30 | syl2anr 598 | . 2 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → ((𝐺‘𝐾) ∘ 𝐹) = (𝑦 ∈ ℕ0 ↦ ((𝐺‘𝐾)‘(𝐹‘𝑦)))) |
32 | eqidd 2822 | . . . . . . 7 ⊢ (𝑥 = 𝑦 → 𝐾 = 𝐾) | |
33 | 32 | cbvmptv 5169 | . . . . . 6 ⊢ (𝑥 ∈ ℕ0 ↦ 𝐾) = (𝑦 ∈ ℕ0 ↦ 𝐾) |
34 | 4, 33 | syl6eq 2872 | . . . . 5 ⊢ (𝑛 = 𝐾 → (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑦 ∈ ℕ0 ↦ 𝐾)) |
35 | 34 | adantl 484 | . . . 4 ⊢ ((𝐾 ∈ (0..^𝑁) ∧ 𝑛 = 𝐾) → (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑦 ∈ ℕ0 ↦ 𝐾)) |
36 | 7 | mptex 6986 | . . . . 5 ⊢ (𝑦 ∈ ℕ0 ↦ 𝐾) ∈ V |
37 | 36 | a1i 11 | . . . 4 ⊢ (𝐾 ∈ (0..^𝑁) → (𝑦 ∈ ℕ0 ↦ 𝐾) ∈ V) |
38 | 2, 35, 6, 37 | fvmptd 6775 | . . 3 ⊢ (𝐾 ∈ (0..^𝑁) → (𝐺‘𝐾) = (𝑦 ∈ ℕ0 ↦ 𝐾)) |
39 | 38 | adantl 484 | . 2 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → (𝐺‘𝐾) = (𝑦 ∈ ℕ0 ↦ 𝐾)) |
40 | 24, 31, 39 | 3eqtr4d 2866 | 1 ⊢ ((𝐹 ∈ (Base‘𝑀) ∧ 𝐾 ∈ (0..^𝑁)) → ((𝐺‘𝐾) ∘ 𝐹) = (𝐺‘𝐾)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1537 ∈ wcel 2114 Vcvv 3494 ↦ cmpt 5146 ∘ ccom 5559 ⟶wf 6351 ‘cfv 6355 (class class class)co 7156 0cc0 10537 ℕcn 11638 ℕ0cn0 11898 ..^cfzo 13034 mod cmo 13238 Basecbs 16483 EndoFMndcefmnd 18033 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-int 4877 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-1st 7689 df-2nd 7690 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-1o 8102 df-oadd 8106 df-er 8289 df-map 8408 df-en 8510 df-dom 8511 df-sdom 8512 df-fin 8513 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-nn 11639 df-2 11701 df-3 11702 df-4 11703 df-5 11704 df-6 11705 df-7 11706 df-8 11707 df-9 11708 df-n0 11899 df-z 11983 df-uz 12245 df-fz 12894 df-fzo 13035 df-struct 16485 df-ndx 16486 df-slot 16487 df-base 16489 df-plusg 16578 df-tset 16584 df-efmnd 18034 |
This theorem is referenced by: smndex1mgm 18072 smndex1mndlem 18074 |
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