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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 13172 | . 2 ⊢ (𝐺 ∈ Mnd → 𝐺 ∈ Mgm) | |
| 2 | mndcl.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
| 3 | mndcl.p | . . 3 ⊢ + = (+g‘𝐺) | |
| 4 | 2, 3 | mgmcl 13109 | . 2 ⊢ ((𝐺 ∈ Mgm ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) ∈ 𝐵) |
| 5 | 1, 4 | syl3an1 1282 | 1 ⊢ ((𝐺 ∈ Mnd ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) ∈ 𝐵) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ w3a 980 = wceq 1372 ∈ wcel 2175 ‘cfv 5268 (class class class)co 5934 Basecbs 12751 +gcplusg 12828 Mgmcmgm 13104 Mndcmnd 13166 |
| 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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-13 2177 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 ax-un 4478 ax-cnex 7998 ax-resscn 7999 ax-1re 8001 ax-addrcl 8004 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ral 2488 df-rex 2489 df-rab 2492 df-v 2773 df-sbc 2998 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-int 3885 df-br 4044 df-opab 4105 df-mpt 4106 df-id 4338 df-xp 4679 df-rel 4680 df-cnv 4681 df-co 4682 df-dm 4683 df-rn 4684 df-res 4685 df-iota 5229 df-fun 5270 df-fn 5271 df-fv 5276 df-ov 5937 df-inn 9019 df-2 9077 df-ndx 12754 df-slot 12755 df-base 12757 df-plusg 12841 df-mgm 13106 df-sgrp 13152 df-mnd 13167 |
| This theorem is referenced by: mnd4g 13179 mndpropd 13190 issubmnd 13192 prdsplusgcl 13196 imasmnd 13203 idmhm 13219 mhmf1o 13220 issubmd 13224 submid 13227 0mhm 13236 mhmco 13240 mhmeql 13242 gsumwmhm 13248 gsumfzcl 13249 grpcl 13258 mhmmnd 13370 mulgnn0cl 13392 mulgnn0z 13403 gsumfzreidx 13591 gsumfzmptfidmadd 13593 gsumfzmhm 13597 srgcl 13650 srgacl 13662 ringcl 13693 ringpropd 13718 |
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