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Mirrors > Home > ILE Home > Th. List > isgrpi | GIF version |
Description: Properties that determine a group. 𝑁 (negative) is normally dependent on 𝑥 i.e. read it as 𝑁(𝑥). (Contributed by NM, 3-Sep-2011.) |
Ref | Expression |
---|---|
isgrpi.b | ⊢ 𝐵 = (Base‘𝐺) |
isgrpi.p | ⊢ + = (+g‘𝐺) |
isgrpi.c | ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) ∈ 𝐵) |
isgrpi.a | ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝑥 + 𝑦) + 𝑧) = (𝑥 + (𝑦 + 𝑧))) |
isgrpi.z | ⊢ 0 ∈ 𝐵 |
isgrpi.i | ⊢ (𝑥 ∈ 𝐵 → ( 0 + 𝑥) = 𝑥) |
isgrpi.n | ⊢ (𝑥 ∈ 𝐵 → 𝑁 ∈ 𝐵) |
isgrpi.j | ⊢ (𝑥 ∈ 𝐵 → (𝑁 + 𝑥) = 0 ) |
Ref | Expression |
---|---|
isgrpi | ⊢ 𝐺 ∈ Grp |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | isgrpi.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
2 | 1 | a1i 9 | . . 3 ⊢ (⊤ → 𝐵 = (Base‘𝐺)) |
3 | isgrpi.p | . . . 4 ⊢ + = (+g‘𝐺) | |
4 | 3 | a1i 9 | . . 3 ⊢ (⊤ → + = (+g‘𝐺)) |
5 | isgrpi.c | . . . 4 ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) ∈ 𝐵) | |
6 | 5 | 3adant1 1010 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) ∈ 𝐵) |
7 | isgrpi.a | . . . 4 ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝑥 + 𝑦) + 𝑧) = (𝑥 + (𝑦 + 𝑧))) | |
8 | 7 | adantl 275 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → ((𝑥 + 𝑦) + 𝑧) = (𝑥 + (𝑦 + 𝑧))) |
9 | isgrpi.z | . . . 4 ⊢ 0 ∈ 𝐵 | |
10 | 9 | a1i 9 | . . 3 ⊢ (⊤ → 0 ∈ 𝐵) |
11 | isgrpi.i | . . . 4 ⊢ (𝑥 ∈ 𝐵 → ( 0 + 𝑥) = 𝑥) | |
12 | 11 | adantl 275 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐵) → ( 0 + 𝑥) = 𝑥) |
13 | isgrpi.n | . . . 4 ⊢ (𝑥 ∈ 𝐵 → 𝑁 ∈ 𝐵) | |
14 | 13 | adantl 275 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐵) → 𝑁 ∈ 𝐵) |
15 | isgrpi.j | . . . 4 ⊢ (𝑥 ∈ 𝐵 → (𝑁 + 𝑥) = 0 ) | |
16 | 15 | adantl 275 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐵) → (𝑁 + 𝑥) = 0 ) |
17 | 2, 4, 6, 8, 10, 12, 14, 16 | isgrpd 12729 | . 2 ⊢ (⊤ → 𝐺 ∈ Grp) |
18 | 17 | mptru 1357 | 1 ⊢ 𝐺 ∈ Grp |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∧ w3a 973 = wceq 1348 ⊤wtru 1349 ∈ wcel 2141 ‘cfv 5198 (class class class)co 5853 Basecbs 12416 +gcplusg 12480 Grpcgrp 12708 |
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 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-cnex 7865 ax-resscn 7866 ax-1re 7868 ax-addrcl 7871 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-reu 2455 df-rmo 2456 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-iota 5160 df-fun 5200 df-fn 5201 df-fv 5206 df-riota 5809 df-ov 5856 df-inn 8879 df-2 8937 df-ndx 12419 df-slot 12420 df-base 12422 df-plusg 12493 df-0g 12598 df-mgm 12610 df-sgrp 12643 df-mnd 12653 df-grp 12711 |
This theorem is referenced by: (None) |
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