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| Mirrors > Home > ILE Home > Th. List > mulridd | GIF version | ||
| Description: Identity law for multiplication. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| addcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| Ref | Expression |
|---|---|
| mulridd | ⊢ (𝜑 → (𝐴 · 1) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | mulrid 8317 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 1) = 𝐴) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐴 · 1) = 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1402 ∈ wcel 2209 (class class class)co 6079 ℂcc 8171 1c1 8174 · cmul 8178 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8265 ax-1cn 8266 ax-icn 8268 ax-addcl 8269 ax-mulcl 8271 ax-mulcom 8274 ax-mulass 8276 ax-distr 8277 ax-1rid 8280 ax-cnre 8284 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-iota 5335 df-fv 5383 df-ov 6082 |
| This theorem is referenced by: muladd11 8453 muls1d 8739 ltmul1 8914 mulap0 8976 divrecap 9012 diveqap1 9029 conjmulap 9053 apmul1 9112 qapne 10022 divelunit 10387 modqid 10769 q2submod 10805 addmodlteq 10818 expadd 11001 leexp2r 11013 nnlesq 11063 sqoddm1div8 11114 nn0opthlem1d 11141 faclbnd 11162 faclbnd2 11163 faclbnd6 11165 facavg 11167 bcn0 11176 bcn1 11179 hashf1lem2 11269 hashfac 11271 reccn2ap 12062 hash2iun1dif1 12230 binom11 12236 trireciplem 12250 geosergap 12256 cvgratnnlemnexp 12274 cvgratnnlemmn 12275 fprodsplitdc 12346 efzval 12433 tanaddaplem 12488 tanaddap 12489 cos01gt0 12513 absef 12520 1dvds 12555 bitsfzo 12705 bitsmod 12706 bezoutlema 12759 bezoutlemb 12760 gcdmultiple 12780 sqgcd 12789 lcm1 12842 coprmdvds 12853 qredeu 12858 phiprmpw 12983 coprimeprodsq 13019 pc2dvds 13092 sumhashdc 13109 fldivp1 13110 pcfaclem 13111 prmpwdvds 13117 zsssubrg 14905 mulgrhm2 14928 znrrg 14978 dveflem 15810 plyconst 15829 plycolemc 15842 efper 15891 tangtx 15922 logdivlti 15965 rpcxpmul2 15998 relogbexpap 16043 rplogbcxp 16048 birthdaylem3 16072 0sgm 16082 lgsdir2 16135 lgsquad2lem1 16183 lgsquad3 16186 2sqlem6 16222 2sqlem8 16225 trilpolemclim 17059 trilpolemisumle 17061 trilpolemeq1 17063 trilpolemlt1 17064 redcwlpolemeq1 17078 nconstwlpolemgt0 17088 |
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