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| Mirrors > Home > MPE Home > Th. List > 0ghm | Structured version Visualization version GIF version | ||
| Description: The constant zero linear function between two groups. (Contributed by Stefan O'Rear, 5-Sep-2015.) |
| Ref | Expression |
|---|---|
| 0ghm.z | ⊢ 0 = (0g‘𝑁) |
| 0ghm.b | ⊢ 𝐵 = (Base‘𝑀) |
| Ref | Expression |
|---|---|
| 0ghm | ⊢ ((𝑀 ∈ Grp ∧ 𝑁 ∈ Grp) → (𝐵 × { 0 }) ∈ (𝑀 GrpHom 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | grpmnd 18983 | . . 3 ⊢ (𝑀 ∈ Grp → 𝑀 ∈ Mnd) | |
| 2 | grpmnd 18983 | . . 3 ⊢ (𝑁 ∈ Grp → 𝑁 ∈ Mnd) | |
| 3 | 0ghm.z | . . . 4 ⊢ 0 = (0g‘𝑁) | |
| 4 | 0ghm.b | . . . 4 ⊢ 𝐵 = (Base‘𝑀) | |
| 5 | 3, 4 | 0mhm 18854 | . . 3 ⊢ ((𝑀 ∈ Mnd ∧ 𝑁 ∈ Mnd) → (𝐵 × { 0 }) ∈ (𝑀 MndHom 𝑁)) |
| 6 | 1, 2, 5 | syl2an 605 | . 2 ⊢ ((𝑀 ∈ Grp ∧ 𝑁 ∈ Grp) → (𝐵 × { 0 }) ∈ (𝑀 MndHom 𝑁)) |
| 7 | ghmmhmb 19268 | . 2 ⊢ ((𝑀 ∈ Grp ∧ 𝑁 ∈ Grp) → (𝑀 GrpHom 𝑁) = (𝑀 MndHom 𝑁)) | |
| 8 | 6, 7 | eleqtrrd 2866 | 1 ⊢ ((𝑀 ∈ Grp ∧ 𝑁 ∈ Grp) → (𝐵 × { 0 }) ∈ (𝑀 GrpHom 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1561 ∈ wcel 2143 {csn 4583 × cxp 5646 ‘cfv 6522 (class class class)co 7397 Basecbs 17246 0gc0g 17469 Mndcmnd 18769 MndHom cmhm 18816 Grpcgrp 18976 GrpHom cghm 19254 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3078 df-rex 3088 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-id 5543 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-fv 6530 df-riota 7354 df-ov 7400 df-oprab 7401 df-mpo 7402 df-1st 7971 df-2nd 7972 df-map 8811 df-0g 17471 df-mgm 18675 df-sgrp 18754 df-mnd 18770 df-mhm 18818 df-grp 18979 df-ghm 19255 |
| This theorem is referenced by: 0frgp 19820 0lmhm 21108 nmo0 24796 0nghm 24802 |
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