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Mirrors > Home > ILE Home > Th. List > grplactfval | GIF version |
Description: The left group action of element 𝐴 of group 𝐺. (Contributed by Paul Chapman, 18-Mar-2008.) |
Ref | Expression |
---|---|
grplact.1 | ⊢ 𝐹 = (𝑔 ∈ 𝑋 ↦ (𝑎 ∈ 𝑋 ↦ (𝑔 + 𝑎))) |
grplact.2 | ⊢ 𝑋 = (Base‘𝐺) |
Ref | Expression |
---|---|
grplactfval | ⊢ (𝐴 ∈ 𝑋 → (𝐹‘𝐴) = (𝑎 ∈ 𝑋 ↦ (𝐴 + 𝑎))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | grplact.1 | . 2 ⊢ 𝐹 = (𝑔 ∈ 𝑋 ↦ (𝑎 ∈ 𝑋 ↦ (𝑔 + 𝑎))) | |
2 | oveq1 5864 | . . 3 ⊢ (𝑔 = 𝐴 → (𝑔 + 𝑎) = (𝐴 + 𝑎)) | |
3 | 2 | mpteq2dv 4081 | . 2 ⊢ (𝑔 = 𝐴 → (𝑎 ∈ 𝑋 ↦ (𝑔 + 𝑎)) = (𝑎 ∈ 𝑋 ↦ (𝐴 + 𝑎))) |
4 | id 19 | . 2 ⊢ (𝐴 ∈ 𝑋 → 𝐴 ∈ 𝑋) | |
5 | grplact.2 | . . . 4 ⊢ 𝑋 = (Base‘𝐺) | |
6 | basfn 12477 | . . . . 5 ⊢ Base Fn V | |
7 | 5 | basmex 12478 | . . . . 5 ⊢ (𝐴 ∈ 𝑋 → 𝐺 ∈ V) |
8 | funfvex 5516 | . . . . . 6 ⊢ ((Fun Base ∧ 𝐺 ∈ dom Base) → (Base‘𝐺) ∈ V) | |
9 | 8 | funfni 5300 | . . . . 5 ⊢ ((Base Fn V ∧ 𝐺 ∈ V) → (Base‘𝐺) ∈ V) |
10 | 6, 7, 9 | sylancr 412 | . . . 4 ⊢ (𝐴 ∈ 𝑋 → (Base‘𝐺) ∈ V) |
11 | 5, 10 | eqeltrid 2258 | . . 3 ⊢ (𝐴 ∈ 𝑋 → 𝑋 ∈ V) |
12 | 11 | mptexd 5727 | . 2 ⊢ (𝐴 ∈ 𝑋 → (𝑎 ∈ 𝑋 ↦ (𝐴 + 𝑎)) ∈ V) |
13 | 1, 3, 4, 12 | fvmptd3 5593 | 1 ⊢ (𝐴 ∈ 𝑋 → (𝐹‘𝐴) = (𝑎 ∈ 𝑋 ↦ (𝐴 + 𝑎))) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1349 ∈ wcel 2142 Vcvv 2731 ↦ cmpt 4051 Fn wfn 5195 ‘cfv 5200 (class class class)co 5857 Basecbs 12420 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 705 ax-5 1441 ax-7 1442 ax-gen 1443 ax-ie1 1487 ax-ie2 1488 ax-8 1498 ax-10 1499 ax-11 1500 ax-i12 1501 ax-bndl 1503 ax-4 1504 ax-17 1520 ax-i9 1524 ax-ial 1528 ax-i5r 1529 ax-13 2144 ax-14 2145 ax-ext 2153 ax-coll 4105 ax-sep 4108 ax-pow 4161 ax-pr 4195 ax-un 4419 ax-cnex 7869 ax-resscn 7870 ax-1re 7872 ax-addrcl 7875 |
This theorem depends on definitions: df-bi 116 df-3an 976 df-tru 1352 df-nf 1455 df-sb 1757 df-eu 2023 df-mo 2024 df-clab 2158 df-cleq 2164 df-clel 2167 df-nfc 2302 df-ral 2454 df-rex 2455 df-reu 2456 df-rab 2458 df-v 2733 df-sbc 2957 df-csb 3051 df-un 3126 df-in 3128 df-ss 3135 df-pw 3569 df-sn 3590 df-pr 3591 df-op 3593 df-uni 3798 df-int 3833 df-iun 3876 df-br 3991 df-opab 4052 df-mpt 4053 df-id 4279 df-xp 4618 df-rel 4619 df-cnv 4620 df-co 4621 df-dm 4622 df-rn 4623 df-res 4624 df-ima 4625 df-iota 5162 df-fun 5202 df-fn 5203 df-f 5204 df-f1 5205 df-fo 5206 df-f1o 5207 df-fv 5208 df-ov 5860 df-inn 8883 df-ndx 12423 df-slot 12424 df-base 12426 |
This theorem is referenced by: grplactcnv 12823 |
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