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| Mirrors > Home > MPE Home > Th. List > prds0g | Structured version Visualization version GIF version | ||
| Description: The identity in a product of monoids. (Contributed by Stefan O'Rear, 10-Jan-2015.) |
| Ref | Expression |
|---|---|
| prdsmndd.y | ⊢ 𝑌 = (𝑆Xs𝑅) |
| prdsmndd.i | ⊢ (𝜑 → 𝐼 ∈ 𝑊) |
| prdsmndd.s | ⊢ (𝜑 → 𝑆 ∈ 𝑉) |
| prdsmndd.r | ⊢ (𝜑 → 𝑅:𝐼⟶Mnd) |
| Ref | Expression |
|---|---|
| prds0g | ⊢ (𝜑 → (0g ∘ 𝑅) = (0g‘𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prdsmndd.y | . . . 4 ⊢ 𝑌 = (𝑆Xs𝑅) | |
| 2 | eqid 2769 | . . . 4 ⊢ (Base‘𝑌) = (Base‘𝑌) | |
| 3 | eqid 2769 | . . . 4 ⊢ (+g‘𝑌) = (+g‘𝑌) | |
| 4 | prdsmndd.s | . . . . 5 ⊢ (𝜑 → 𝑆 ∈ 𝑉) | |
| 5 | 4 | elexd 3486 | . . . 4 ⊢ (𝜑 → 𝑆 ∈ V) |
| 6 | prdsmndd.i | . . . . 5 ⊢ (𝜑 → 𝐼 ∈ 𝑊) | |
| 7 | 6 | elexd 3486 | . . . 4 ⊢ (𝜑 → 𝐼 ∈ V) |
| 8 | prdsmndd.r | . . . 4 ⊢ (𝜑 → 𝑅:𝐼⟶Mnd) | |
| 9 | eqid 2769 | . . . 4 ⊢ (0g ∘ 𝑅) = (0g ∘ 𝑅) | |
| 10 | 1, 2, 3, 5, 7, 8, 9 | prdsidlem 18823 | . . 3 ⊢ (𝜑 → ((0g ∘ 𝑅) ∈ (Base‘𝑌) ∧ ∀𝑏 ∈ (Base‘𝑌)(((0g ∘ 𝑅)(+g‘𝑌)𝑏) = 𝑏 ∧ (𝑏(+g‘𝑌)(0g ∘ 𝑅)) = 𝑏))) |
| 11 | eqid 2769 | . . . 4 ⊢ (0g‘𝑌) = (0g‘𝑌) | |
| 12 | 1, 6, 4, 8 | prdsmndd 18824 | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ Mnd) |
| 13 | 2, 3 | mndid 18798 | . . . . 5 ⊢ (𝑌 ∈ Mnd → ∃𝑎 ∈ (Base‘𝑌)∀𝑏 ∈ (Base‘𝑌)((𝑎(+g‘𝑌)𝑏) = 𝑏 ∧ (𝑏(+g‘𝑌)𝑎) = 𝑏)) |
| 14 | 12, 13 | syl 18 | . . . 4 ⊢ (𝜑 → ∃𝑎 ∈ (Base‘𝑌)∀𝑏 ∈ (Base‘𝑌)((𝑎(+g‘𝑌)𝑏) = 𝑏 ∧ (𝑏(+g‘𝑌)𝑎) = 𝑏)) |
| 15 | 2, 11, 3, 14 | ismgmid 18719 | . . 3 ⊢ (𝜑 → (((0g ∘ 𝑅) ∈ (Base‘𝑌) ∧ ∀𝑏 ∈ (Base‘𝑌)(((0g ∘ 𝑅)(+g‘𝑌)𝑏) = 𝑏 ∧ (𝑏(+g‘𝑌)(0g ∘ 𝑅)) = 𝑏)) ↔ (0g‘𝑌) = (0g ∘ 𝑅))) |
| 16 | 10, 15 | mpbid 235 | . 2 ⊢ (𝜑 → (0g‘𝑌) = (0g ∘ 𝑅)) |
| 17 | 16 | eqcomd 2775 | 1 ⊢ (𝜑 → (0g ∘ 𝑅) = (0g‘𝑌)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1567 ∈ wcel 2149 ∀wral 3085 ∃wrex 3095 Vcvv 3463 ∘ ccom 5663 ⟶wf 6529 ‘cfv 6533 (class class class)co 7408 Basecbs 17265 +gcplusg 17306 0gc0g 17488 Xscprds 17494 Mndcmnd 18788 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5239 ax-sep 5258 ax-nul 5268 ax-pow 5334 ax-pr 5402 ax-un 7730 ax-cnex 11152 ax-resscn 11153 ax-1cn 11154 ax-icn 11155 ax-addcl 11156 ax-addrcl 11157 ax-mulcl 11158 ax-mulrcl 11159 ax-mulcom 11160 ax-addass 11161 ax-mulass 11162 ax-distr 11163 ax-i2m1 11164 ax-1ne0 11165 ax-1rid 11166 ax-rnegex 11167 ax-rrecex 11168 ax-cnre 11169 ax-pre-lttri 11170 ax-pre-lttrn 11171 ax-pre-ltadd 11172 ax-pre-mulgt0 11173 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7859 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-1o 8449 df-er 8690 df-map 8822 df-ixp 8892 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-sup 9398 df-pnf 11241 df-mnf 11242 df-xr 11243 df-ltxr 11244 df-le 11245 df-sub 11439 df-neg 11440 df-nn 12230 df-2 12299 df-3 12300 df-4 12301 df-5 12302 df-6 12303 df-7 12304 df-8 12305 df-9 12306 df-n0 12501 df-z 12588 df-dec 12708 df-uz 12859 df-fz 13532 df-struct 17203 df-slot 17238 df-ndx 17250 df-base 17266 df-plusg 17319 df-mulr 17320 df-sca 17322 df-vsca 17323 df-ip 17324 df-tset 17325 df-ple 17326 df-ds 17328 df-hom 17330 df-cco 17331 df-0g 17490 df-prds 17496 df-mgm 18694 df-sgrp 18773 df-mnd 18789 |
| This theorem is referenced by: pws0g 18827 prdspjmhm 18884 prdsgrpd 19112 prdsinvgd 19113 prds1 20400 dsmm0cl 21855 |
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