| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > recid2d | Structured version Visualization version GIF version | ||
| Description: Multiplication of a number and its reciprocal. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| div1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| reccld.2 | ⊢ (𝜑 → 𝐴 ≠ 0) |
| Ref | Expression |
|---|---|
| recid2d | ⊢ (𝜑 → ((1 / 𝐴) · 𝐴) = 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | div1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | reccld.2 | . 2 ⊢ (𝜑 → 𝐴 ≠ 0) | |
| 3 | recid2 11936 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → ((1 / 𝐴) · 𝐴) = 1) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → ((1 / 𝐴) · 𝐴) = 1) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 (class class class)co 7416 ℂcc 11147 0cc0 11149 1c1 11150 · cmul 11154 / cdiv 11920 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7742 ax-resscn 11206 ax-1cn 11207 ax-icn 11208 ax-addcl 11209 ax-addrcl 11210 ax-mulcl 11211 ax-mulrcl 11212 ax-mulcom 11213 ax-addass 11214 ax-mulass 11215 ax-distr 11216 ax-i2m1 11217 ax-1ne0 11218 ax-1rid 11219 ax-rnegex 11220 ax-rrecex 11221 ax-cnre 11222 ax-pre-lttri 11223 ax-pre-lttrn 11224 ax-pre-ltadd 11225 ax-pre-mulgt0 11226 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6491 df-fun 6537 df-fn 6538 df-f 6539 df-f1 6540 df-fo 6541 df-f1o 6542 df-fv 6543 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-er 8703 df-en 8960 df-dom 8961 df-sdom 8962 df-pnf 11294 df-mnf 11295 df-xr 11296 df-ltxr 11297 df-le 11298 df-sub 11492 df-neg 11493 df-div 11921 |
| This theorem is used by: recgt0 12110 cvsmuleqdivd 25394 ncvs1 25417 mbfi1fseqlem4 25978 itg2mulc 26007 advlog 26923 cxproot 26959 rlimcxp 27242 cxp2lim 27245 ftalem5 27345 chpchtsum 27487 dchrinvcl 27521 pntrsumo1 27833 nv1 31188 norm1 31762 branmfn 32618 leopmul 32647 strlem1 32763 cos9thpiminplylem2 34326 mpaaeu 44056 stirlinglem15 46981 dirkercncflem2 46997 eenglngeehlnmlem2 49733 |
| Copyright terms: Public domain | W3C validator |