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| Mirrors > Home > ILE Home > Th. List > mndcl | GIF version | ||
| Description: Closure of the operation of a monoid. (Contributed by NM, 14-Aug-2011.) (Revised by Mario Carneiro, 6-Jan-2015.) (Proof shortened by AV, 8-Feb-2020.) |
| Ref | Expression |
|---|---|
| mndcl.b | ⊢ 𝐵 = (Base‘𝐺) |
| mndcl.p | ⊢ + = (+g‘𝐺) |
| Ref | Expression |
|---|---|
| mndcl | ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mndmgm 13492 | . 2 ⊢ (𝐺 ∈ Mnd → 𝐺 ∈ Mgm) | |
| 2 | mndcl.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | mndcl.p | . . 3 ⊢ + = (+g‘𝐺) | |
| 4 | 2, 3 | mgmcl 13429 | . 2 ⊢ ((𝐺 ∈ Mgm ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) ∈ 𝐵) |
| 5 | 1, 4 | syl3an1 1304 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) ∈ 𝐵) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ w3a 1002 = wceq 1395 ∈ wcel 2200 ‘cfv 5322 (class class class)co 6011 Basecbs 13069 +gcplusg 13147 Mgmcmgm 13424 Mndcmnd 13486 |
| 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-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4203 ax-pow 4260 ax-pr 4295 ax-un 4526 ax-cnex 8111 ax-resscn 8112 ax-1re 8114 ax-addrcl 8117 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2802 df-sbc 3030 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3890 df-int 3925 df-br 4085 df-opab 4147 df-mpt 4148 df-id 4386 df-xp 4727 df-rel 4728 df-cnv 4729 df-co 4730 df-dm 4731 df-rn 4732 df-res 4733 df-iota 5282 df-fun 5324 df-fn 5325 df-fv 5330 df-ov 6014 df-inn 9132 df-2 9190 df-ndx 13072 df-slot 13073 df-base 13075 df-plusg 13160 df-mgm 13426 df-sgrp 13472 df-mnd 13487 |
| This theorem is referenced by: mnd4g 13499 mndpropd 13510 issubmnd 13512 prdsplusgcl 13516 imasmnd 13523 idmhm 13539 mhmf1o 13540 issubmd 13544 submid 13547 0mhm 13556 mhmco 13560 mhmeql 13562 gsumwmhm 13568 gsumfzcl 13569 grpcl 13578 mhmmnd 13690 mulgnn0cl 13712 mulgnn0z 13723 gsumfzreidx 13911 gsumfzmptfidmadd 13913 gsumfzmhm 13917 srgcl 13970 srgacl 13982 ringcl 14013 ringpropd 14038 |
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