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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 18908 | . 2 ⊢ (𝐴 ∈ 𝑉 → {( I ↾ 𝐴)} ∈ (SubMnd‘𝐺)) |
| 3 | 1 | efmndmnd 18899 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → 𝐺 ∈ Mnd) |
| 4 | eqid 2756 | . . . . 5 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 5 | eqid 2756 | . . . . 5 ⊢ (0g‘𝐺) = (0g‘𝐺) | |
| 6 | eqid 2756 | . . . . 5 ⊢ (𝐺 ↾s {( I ↾ 𝐴)}) = (𝐺 ↾s {( I ↾ 𝐴)}) | |
| 7 | 4, 5, 6 | issubm2 18814 | . . . 4 ⊢ (𝐺 ∈ Mnd → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) ↔ ({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd))) |
| 8 | 3, 7 | syl 17 | . . 3 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) ↔ ({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd))) |
| 9 | snex 5390 | . . . . . . 7 ⊢ {( I ↾ 𝐴)} ∈ V | |
| 10 | idresefmnd.e | . . . . . . . 8 ⊢ 𝐸 = (𝐺 ↾s {( I ↾ 𝐴)}) | |
| 11 | 10, 4 | ressbas 17248 | . . . . . . 7 ⊢ ({( I ↾ 𝐴)} ∈ V → ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) = (Base‘𝐸)) |
| 12 | 9, 11 | mp1i 13 | . . . . . 6 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) = (Base‘𝐸)) |
| 13 | inss2 4184 | . . . . . 6 ⊢ ({( I ↾ 𝐴)} ∩ (Base‘𝐺)) ⊆ (Base‘𝐺) | |
| 14 | 12, 13 | eqsstrrdi 3976 | . . . . 5 ⊢ (𝐴 ∈ 𝑉 → (Base‘𝐸) ⊆ (Base‘𝐺)) |
| 15 | 10 | eqcomi 2765 | . . . . . . . 8 ⊢ (𝐺 ↾s {( I ↾ 𝐴)}) = 𝐸 |
| 16 | 15 | eleq1i 2847 | . . . . . . 7 ⊢ ((𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd ↔ 𝐸 ∈ Mnd) |
| 17 | 16 | biimpi 218 | . . . . . 6 ⊢ ((𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd → 𝐸 ∈ Mnd) |
| 18 | 17 | 3ad2ant3 1144 | . . . . 5 ⊢ (({( I ↾ 𝐴)} ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ {( I ↾ 𝐴)} ∧ (𝐺 ↾s {( I ↾ 𝐴)}) ∈ Mnd) → 𝐸 ∈ Mnd) |
| 19 | 14, 18 | anim12ci 622 | . . . 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 415 | . . 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 242 | . 2 ⊢ (𝐴 ∈ 𝑉 → ({( I ↾ 𝐴)} ∈ (SubMnd‘𝐺) → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺)))) |
| 22 | 2, 21 | mpd 15 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐸 ∈ Mnd ∧ (Base‘𝐸) ⊆ (Base‘𝐺))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 ∧ w3a 1095 = wceq 1554 ∈ wcel 2136 Vcvv 3448 ∩ cin 3898 ⊆ wss 3899 {csn 4576 I cid 5534 ↾ cres 5642 ‘cfv 6510 (class class class)co 7385 Basecbs 17221 ↾s cress 17242 0gc0g 17444 Mndcmnd 18744 SubMndcsubmnd 18792 EndoFMndcefmnd 18878 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-rep 5221 ax-sep 5240 ax-nul 5250 ax-pow 5316 ax-pr 5384 ax-un 7707 ax-cnex 11119 ax-resscn 11120 ax-1cn 11121 ax-icn 11122 ax-addcl 11123 ax-addrcl 11124 ax-mulcl 11125 ax-mulrcl 11126 ax-mulcom 11127 ax-addass 11128 ax-mulass 11129 ax-distr 11130 ax-i2m1 11131 ax-1ne0 11132 ax-1rid 11133 ax-rnegex 11134 ax-rrecex 11135 ax-cnre 11136 ax-pre-lttri 11137 ax-pre-lttrn 11138 ax-pre-ltadd 11139 ax-pre-mulgt0 11140 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-nel 3056 df-ral 3071 df-rex 3081 df-rmo 3361 df-reu 3362 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-iun 4945 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-f1 6515 df-fo 6516 df-f1o 6517 df-fv 6518 df-riota 7342 df-ov 7388 df-oprab 7389 df-mpo 7390 df-om 7836 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8330 df-rdg 8369 df-1o 8425 df-er 8666 df-map 8798 df-en 8917 df-dom 8918 df-sdom 8919 df-fin 8920 df-pnf 11208 df-mnf 11209 df-xr 11210 df-ltxr 11211 df-le 11212 df-sub 11406 df-neg 11407 df-nn 12201 df-2 12270 df-3 12271 df-4 12272 df-5 12273 df-6 12274 df-7 12275 df-8 12276 df-9 12277 df-n0 12472 df-z 12559 df-uz 12830 df-fz 13503 df-struct 17159 df-sets 17176 df-slot 17194 df-ndx 17206 df-base 17222 df-ress 17243 df-plusg 17275 df-tset 17281 df-0g 17446 df-mgm 18650 df-sgrp 18729 df-mnd 18745 df-submnd 18794 df-efmnd 18879 |
| This theorem is referenced by: (None) |
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