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| Mirrors > Home > ILE Home > Th. List > addcld | GIF version | ||
| Description: Closure law for addition. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| addcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| Ref | Expression |
|---|---|
| addcld | ⊢ (𝜑 → (𝐴 + 𝐵) ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | addcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | addcl 8310 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 𝐵) ∈ ℂ) | |
| 4 | 1, 2, 3 | syl2anc 415 | 1 ⊢ (𝜑 → (𝐴 + 𝐵) ∈ ℂ) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 (class class class)co 6088 ℂcc 8183 + caddc 8188 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia3 108 ax-addcl 8281 |
| This theorem is used by: muladd11r 8489 negeu 8524 addsubass 8543 subsub2 8561 subsub4 8566 pnpcan 8572 pnncan 8574 addsub4 8576 pnpncand 8708 apreim 8939 addext 8946 aprcl 8982 aptap 8986 divdirap 9035 recp1lt1 9237 cju 9299 cnref1o 10067 modsumfzodifsn 10853 expaddzap 11040 binom2 11108 binom3 11114 sqoddm1div8 11151 mulsubdivbinom2ap 11170 nn0opthlem1d 11179 reval 11635 imval 11636 crre 11643 remullem 11657 imval2 11680 cjreim2 11691 cnrecnv 11697 resqrexlemcalc1 11801 maxabslemab 11994 maxltsup 12006 max0addsup 12007 minabs 12025 bdtrilem 12029 bdtri 12030 addcn2 12100 fsumadd 12197 isumadd 12222 binomlem 12274 efaddlem 12465 ef4p 12485 cosval 12494 cosf 12496 tanval2ap 12504 tanval3ap 12505 resin4p 12509 recos4p 12510 efival 12523 sinadd 12527 cosadd 12528 tanaddap 12530 pythagtriplem1 13072 pythagtriplem12 13082 pythagtriplem16 13086 pythagtriplem17 13087 pcbc 13158 mul4sqlem 13200 4sqlem14 13211 ballotfilemsima 13316 oddennn 13340 mulgdirlem 14014 gzsumconst 14232 gsumfsum 15031 addccncf 15843 limcimolemlt 15907 dvaddxxbr 15944 plyaddlem1 15990 ptolemy 16068 rpcxpadd 16155 binom4 16236 pellexlem2 16247 bposlem9 16336 lgsquad2lem1 16422 2lgslem3d1 16441 dichmul0orlem7 16981 qdencn 17295 iooref1o 17306 apdifflemr 17320 qdiff 17322 |
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