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| Mirrors > Home > MPE Home > Th. List > idresefmnd | Structured version Visualization version GIF version | ||
| Description: The structure with the singleton containing only the identity function restricted to a set 𝐴 as base set and the function composition as group operation, constructed by (structure) restricting the monoid of endofunctions on 𝐴 to that singleton, is a monoid whose base set is a subset of the base set of the monoid of endofunctions on 𝐴. (Contributed by AV, 17-Feb-2024.) |
| Ref | Expression |
|---|---|
| idressubmefmnd.g | ⊢ 𝐺 = (EndoFMnd‘𝐴) |
| idresefmnd.e | ⊢ 𝐸 = (𝐺 ↾s {( I ↾ 𝐴)}) |
| Ref | Expression |
|---|---|
| idresefmnd | ⊢ (𝐴 ∈ 𝑉 → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | idressubmefmnd.g | . . 3 ⊢ 𝐺 = (EndoFMnd‘𝐴) | |
| 2 | 1 | idressubmefmnd 18947 | . 2 ⊢ (𝐴 ∈ 𝑉 → {( I ↾ 𝐴)} ∈ (SubMnd‘𝐺)) |
| 3 | 1 | efmndmnd 18938 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → 𝐺 ∈ Mnd) |
| 4 | eqid 2765 | . . . . 5 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 5 | eqid 2765 | . . . . 5 ⊢ (0g‘𝐺) = (0g‘𝐺) | |
| 6 | eqid 2765 | . . . . 5 ⊢ (𝐺 ↾s {( I ↾ 𝐴)}) = (𝐺 ↾s {( I ↾ 𝐴)}) | |
| 7 | 4, 5, 6 | issubm2 18852 | . . . 4 ⊢ (𝐺 ∈ Mnd → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) ↔ ({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd))) |
| 8 | 3, 7 | syl 18 | . . 3 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) ↔ ({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd))) |
| 9 | snex 5401 | . . . . . . 7 ⊢ {( I ↾ 𝐴)} ∈ V | |
| 10 | idresefmnd.e | . . . . . . . 8 ⊢ 𝐸 = (𝐺 ↾s {( I ↾ 𝐴)}) | |
| 11 | 10, 4 | ressbas 17286 | . . . . . . 7 ⊢ ({( I ↾ 𝐴)} ∈ V → ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) = (Base‘𝐸)) |
| 12 | 9, 11 | mp1i 14 | . . . . . 6 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) = (Base‘𝐸)) |
| 13 | inss2 4192 | . . . . . 6 ⊢ ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) ⊆ (Base‘𝐺) | |
| 14 | 12, 13 | eqsstrrdi 3984 | . . . . 5 ⊢ (𝐴 ∈ 𝑉 → (Base‘𝐸) ⊆ (Base‘𝐺)) |
| 15 | 10 | eqcomi 2774 | . . . . . . . 8 ⊢ (𝐺 ↾s {( I ↾ 𝐴)}) = 𝐸 |
| 16 | 15 | eleq1i 2856 | . . . . . . 7 ⊢ ((𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd ↔ 𝐸 ∈ Mnd) |
| 17 | 16 | biimpi 219 | . . . . . 6 ⊢ ((𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd → 𝐸 ∈ Mnd) |
| 18 | 17 | 3ad2ant3 1151 | . . . . 5 ⊢ (({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd) → 𝐸 ∈ Mnd) |
| 19 | 14, 18 | anim12ci 625 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ ({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd)) → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺))) |
| 20 | 19 | ex 417 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd) → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺)))) |
| 21 | 8, 20 | sylbid 243 | . 2 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺)))) |
| 22 | 2, 21 | mpd 16 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 ∧ w3a 1101 = wceq 1563 ∈ wcel 2145 Vcvv 3457 ∩ cin 3906 ⊆ wss 3907 {csn 4585 I cid 5546 ↾ cres 5654 ‘cfv 6525 (class class class)co 7400 Basecbs 17259 ↾s cress 17280 0gc0g 17482 Mndcmnd 18782 SubMndcsubmnd 18830 EndoFMndcefmnd 18917 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4869 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-er 8682 df-map 8814 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-nn 12225 df-2 12294 df-3 12295 df-4 12296 df-5 12297 df-6 12298 df-7 12299 df-8 12300 df-9 12301 df-n0 12496 df-z 12583 df-uz 12854 df-fz 13527 df-struct 17197 df-sets 17214 df-slot 17232 df-ndx 17244 df-base 17260 df-ress 17281 df-plusg 17313 df-tset 17319 df-0g 17484 df-mgm 18688 df-sgrp 18767 df-mnd 18783 df-submnd 18832 df-efmnd 18918 |
| This theorem is referenced by: (None) |
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