![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > trivsubgd | Structured version Visualization version GIF version |
Description: The only subgroup of a trivial group is itself. (Contributed by Rohan Ridenour, 3-Aug-2023.) |
Ref | Expression |
---|---|
trivsubgd.1 | ⊢ 𝐵 = (Base‘𝐺) |
trivsubgd.2 | ⊢ 0 = (0g‘𝐺) |
trivsubgd.3 | ⊢ (𝜑 → 𝐺 ∈ Grp) |
trivsubgd.4 | ⊢ (𝜑 → 𝐵 = { 0 }) |
trivsubgd.5 | ⊢ (𝜑 → 𝐴 ∈ (SubGrp‘𝐺)) |
Ref | Expression |
---|---|
trivsubgd | ⊢ (𝜑 → 𝐴 = 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | trivsubgd.5 | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ (SubGrp‘𝐺)) | |
2 | trivsubgd.1 | . . . . . 6 ⊢ 𝐵 = (Base‘𝐺) | |
3 | 2 | subgss 19044 | . . . . 5 ⊢ (𝐴 ∈ (SubGrp‘𝐺) → 𝐴 ⊆ 𝐵) |
4 | 1, 3 | syl 17 | . . . 4 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
5 | trivsubgd.4 | . . . 4 ⊢ (𝜑 → 𝐵 = { 0 }) | |
6 | 4, 5 | sseqtrd 4023 | . . 3 ⊢ (𝜑 → 𝐴 ⊆ { 0 }) |
7 | trivsubgd.2 | . . . . . 6 ⊢ 0 = (0g‘𝐺) | |
8 | 7 | subg0cl 19051 | . . . . 5 ⊢ (𝐴 ∈ (SubGrp‘𝐺) → 0 ∈ 𝐴) |
9 | 1, 8 | syl 17 | . . . 4 ⊢ (𝜑 → 0 ∈ 𝐴) |
10 | 9 | snssd 4813 | . . 3 ⊢ (𝜑 → { 0 } ⊆ 𝐴) |
11 | 6, 10 | eqssd 4000 | . 2 ⊢ (𝜑 → 𝐴 = { 0 }) |
12 | 11, 5 | eqtr4d 2774 | 1 ⊢ (𝜑 → 𝐴 = 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2105 ⊆ wss 3949 {csn 4629 ‘cfv 6544 Basecbs 17149 0gc0g 17390 Grpcgrp 18856 SubGrpcsubg 19037 |
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 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7728 ax-cnex 11169 ax-resscn 11170 ax-1cn 11171 ax-icn 11172 ax-addcl 11173 ax-addrcl 11174 ax-mulcl 11175 ax-mulrcl 11176 ax-mulcom 11177 ax-addass 11178 ax-mulass 11179 ax-distr 11180 ax-i2m1 11181 ax-1ne0 11182 ax-1rid 11183 ax-rnegex 11184 ax-rrecex 11185 ax-cnre 11186 ax-pre-lttri 11187 ax-pre-lttrn 11188 ax-pre-ltadd 11189 ax-pre-mulgt0 11190 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3375 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4910 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-riota 7368 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7859 df-2nd 7979 df-frecs 8269 df-wrecs 8300 df-recs 8374 df-rdg 8413 df-er 8706 df-en 8943 df-dom 8944 df-sdom 8945 df-pnf 11255 df-mnf 11256 df-xr 11257 df-ltxr 11258 df-le 11259 df-sub 11451 df-neg 11452 df-nn 12218 df-2 12280 df-sets 17102 df-slot 17120 df-ndx 17132 df-base 17150 df-ress 17179 df-plusg 17215 df-0g 17392 df-mgm 18566 df-sgrp 18645 df-mnd 18661 df-grp 18859 df-subg 19040 |
This theorem is referenced by: trivsubgsnd 19071 |
Copyright terms: Public domain | W3C validator |