| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > sgrp1 | Unicode version | ||
| Description: The structure with one element and the only closed internal operation for a singleton is a semigroup. (Contributed by AV, 10-Feb-2020.) |
| Ref | Expression |
|---|---|
| sgrp1.m |
|
| Ref | Expression |
|---|---|
| sgrp1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sgrp1.m |
. . 3
| |
| 2 | 1 | mgm1 13452 |
. 2
|
| 3 | df-ov 6020 |
. . . . . . 7
| |
| 4 | opexg 4320 |
. . . . . . . . 9
| |
| 5 | 4 | anidms 397 |
. . . . . . . 8
|
| 6 | fvsng 5849 |
. . . . . . . 8
| |
| 7 | 5, 6 | mpancom 422 |
. . . . . . 7
|
| 8 | 3, 7 | eqtrid 2276 |
. . . . . 6
|
| 9 | 8 | oveq1d 6032 |
. . . . 5
|
| 10 | 8 | oveq2d 6033 |
. . . . 5
|
| 11 | 9, 10 | eqtr4d 2267 |
. . . 4
|
| 12 | oveq1 6024 |
. . . . . . . . 9
| |
| 13 | 12 | oveq1d 6032 |
. . . . . . . 8
|
| 14 | oveq1 6024 |
. . . . . . . 8
| |
| 15 | 13, 14 | eqeq12d 2246 |
. . . . . . 7
|
| 16 | 15 | 2ralbidv 2556 |
. . . . . 6
|
| 17 | 16 | ralsng 3709 |
. . . . 5
|
| 18 | oveq2 6025 |
. . . . . . . . 9
| |
| 19 | 18 | oveq1d 6032 |
. . . . . . . 8
|
| 20 | oveq1 6024 |
. . . . . . . . 9
| |
| 21 | 20 | oveq2d 6033 |
. . . . . . . 8
|
| 22 | 19, 21 | eqeq12d 2246 |
. . . . . . 7
|
| 23 | 22 | ralbidv 2532 |
. . . . . 6
|
| 24 | 23 | ralsng 3709 |
. . . . 5
|
| 25 | oveq2 6025 |
. . . . . . 7
| |
| 26 | oveq2 6025 |
. . . . . . . 8
| |
| 27 | 26 | oveq2d 6033 |
. . . . . . 7
|
| 28 | 25, 27 | eqeq12d 2246 |
. . . . . 6
|
| 29 | 28 | ralsng 3709 |
. . . . 5
|
| 30 | 17, 24, 29 | 3bitrd 214 |
. . . 4
|
| 31 | 11, 30 | mpbird 167 |
. . 3
|
| 32 | snexg 4274 |
. . . . 5
| |
| 33 | elex 2814 |
. . . . . . 7
| |
| 34 | opexg 4320 |
. . . . . . 7
| |
| 35 | 5, 33, 34 | syl2anc 411 |
. . . . . 6
|
| 36 | snexg 4274 |
. . . . . 6
| |
| 37 | 35, 36 | syl 14 |
. . . . 5
|
| 38 | 1 | grpbaseg 13209 |
. . . . 5
|
| 39 | 32, 37, 38 | syl2anc 411 |
. . . 4
|
| 40 | 1 | grpplusgg 13210 |
. . . . . . . . 9
|
| 41 | 32, 37, 40 | syl2anc 411 |
. . . . . . . 8
|
| 42 | 41 | oveqd 6034 |
. . . . . . . 8
|
| 43 | eqidd 2232 |
. . . . . . . 8
| |
| 44 | 41, 42, 43 | oveq123d 6038 |
. . . . . . 7
|
| 45 | eqidd 2232 |
. . . . . . . 8
| |
| 46 | 41 | oveqd 6034 |
. . . . . . . 8
|
| 47 | 41, 45, 46 | oveq123d 6038 |
. . . . . . 7
|
| 48 | 44, 47 | eqeq12d 2246 |
. . . . . 6
|
| 49 | 39, 48 | raleqbidv 2746 |
. . . . 5
|
| 50 | 39, 49 | raleqbidv 2746 |
. . . 4
|
| 51 | 39, 50 | raleqbidv 2746 |
. . 3
|
| 52 | 31, 51 | mpbid 147 |
. 2
|
| 53 | eqid 2231 |
. . 3
| |
| 54 | eqid 2231 |
. . 3
| |
| 55 | 53, 54 | issgrp 13485 |
. 2
|
| 56 | 2, 52, 55 | sylanbrc 417 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-addass 8133 ax-i2m1 8136 ax-0lt1 8137 ax-0id 8139 ax-rnegex 8140 ax-pre-ltirr 8143 ax-pre-ltadd 8147 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-iota 5286 df-fun 5328 df-fn 5329 df-fv 5334 df-ov 6020 df-pnf 8215 df-mnf 8216 df-ltxr 8218 df-inn 9143 df-2 9201 df-ndx 13084 df-slot 13085 df-base 13087 df-plusg 13172 df-mgm 13438 df-sgrp 13484 |
| This theorem is referenced by: mnd1 13537 |
| Copyright terms: Public domain | W3C validator |