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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 8304 | . 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 6085 ℂcc 8177 + caddc 8182 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia3 108 ax-addcl 8275 |
| This theorem is used by: muladd11r 8483 negeu 8518 addsubass 8537 subsub2 8555 subsub4 8560 pnpcan 8566 pnncan 8568 addsub4 8570 pnpncand 8702 apreim 8933 addext 8940 aprcl 8976 aptap 8980 divdirap 9029 recp1lt1 9231 cju 9293 cnref1o 10061 modsumfzodifsn 10846 expaddzap 11033 binom2 11101 binom3 11107 sqoddm1div8 11144 mulsubdivbinom2ap 11163 nn0opthlem1d 11172 reval 11628 imval 11629 crre 11636 remullem 11650 imval2 11673 cjreim2 11684 cnrecnv 11690 resqrexlemcalc1 11794 maxabslemab 11987 maxltsup 11999 max0addsup 12000 minabs 12017 bdtrilem 12021 bdtri 12022 addcn2 12092 fsumadd 12189 isumadd 12214 binomlem 12266 efaddlem 12457 ef4p 12477 cosval 12486 cosf 12488 tanval2ap 12496 tanval3ap 12497 resin4p 12501 recos4p 12502 efival 12515 sinadd 12519 cosadd 12520 tanaddap 12522 pythagtriplem1 13064 pythagtriplem12 13074 pythagtriplem16 13078 pythagtriplem17 13079 pcbc 13150 mul4sqlem 13192 4sqlem14 13203 ballotfilemsima 13308 oddennn 13332 mulgdirlem 14005 gzsumconst 14192 gsumfsum 14972 addccncf 15750 limcimolemlt 15814 dvaddxxbr 15851 plyaddlem1 15897 ptolemy 15975 rpcxpadd 16060 binom4 16138 pellexlem2 16149 lgsquad2lem1 16298 2lgslem3d1 16317 dichmul0orlem7 16857 qdencn 17170 iooref1o 17181 apdifflemr 17194 qdiff 17196 |
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