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| Mirrors > Home > ILE Home > Th. List > recclapd | GIF version | ||
| Description: Closure law for reciprocal. (Contributed by Jim Kingdon, 3-Mar-2020.) |
| Ref | Expression |
|---|---|
| div1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| reccld.2 | ⊢ (𝜑 → 𝐴 # 0) |
| Ref | Expression |
|---|---|
| recclapd | ⊢ (𝜑 → (1 / 𝐴) ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | div1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | reccld.2 | . 2 ⊢ (𝜑 → 𝐴 # 0) | |
| 3 | recclap 8765 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 # 0) → (1 / 𝐴) ∈ ℂ) | |
| 4 | 1, 2, 3 | syl2anc 411 | 1 ⊢ (𝜑 → (1 / 𝐴) ∈ ℂ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2177 class class class wbr 4048 (class class class)co 5954 ℂcc 7936 0cc0 7938 1c1 7939 # cap 8667 / cdiv 8758 |
| 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-in1 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2179 ax-14 2180 ax-ext 2188 ax-sep 4167 ax-pow 4223 ax-pr 4258 ax-un 4485 ax-setind 4590 ax-cnex 8029 ax-resscn 8030 ax-1cn 8031 ax-1re 8032 ax-icn 8033 ax-addcl 8034 ax-addrcl 8035 ax-mulcl 8036 ax-mulrcl 8037 ax-addcom 8038 ax-mulcom 8039 ax-addass 8040 ax-mulass 8041 ax-distr 8042 ax-i2m1 8043 ax-0lt1 8044 ax-1rid 8045 ax-0id 8046 ax-rnegex 8047 ax-precex 8048 ax-cnre 8049 ax-pre-ltirr 8050 ax-pre-ltwlin 8051 ax-pre-lttrn 8052 ax-pre-apti 8053 ax-pre-ltadd 8054 ax-pre-mulgt0 8055 ax-pre-mulext 8056 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ne 2378 df-nel 2473 df-ral 2490 df-rex 2491 df-reu 2492 df-rmo 2493 df-rab 2494 df-v 2775 df-sbc 3001 df-dif 3170 df-un 3172 df-in 3174 df-ss 3181 df-pw 3620 df-sn 3641 df-pr 3642 df-op 3644 df-uni 3854 df-br 4049 df-opab 4111 df-id 4345 df-po 4348 df-iso 4349 df-xp 4686 df-rel 4687 df-cnv 4688 df-co 4689 df-dm 4690 df-iota 5238 df-fun 5279 df-fv 5285 df-riota 5909 df-ov 5957 df-oprab 5958 df-mpo 5959 df-pnf 8122 df-mnf 8123 df-xr 8124 df-ltxr 8125 df-le 8126 df-sub 8258 df-neg 8259 df-reap 8661 df-ap 8668 df-div 8759 |
| This theorem is referenced by: apmul1 8874 divap1d 8887 qapne 9773 exp3val 10699 expmulzap 10743 resqrexlemnm 11379 isumdivapc 11789 fsumdivapc 11811 trireciplem 11861 geolim 11872 geolim2 11873 georeclim 11874 geoisumr 11879 clim2divap 11901 prodfdivap 11908 fprodrec 11990 fproddivap 11991 divcnap 15087 cdivcncfap 15126 2lgslem3c 15622 redcwlpolemeq1 16108 |
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