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Mirrors > Home > ILE Home > Th. List > diveqap1bd | GIF version |
Description: If two complex numbers are equal, their quotient is one. One-way deduction form of diveqap1 8661. Converse of diveqap1d 8754. (Contributed by David Moews, 28-Feb-2017.) (Revised by Jim Kingdon, 2-Aug-2023.) |
Ref | Expression |
---|---|
diveq1bd.1 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
diveqap1bd.2 | ⊢ (𝜑 → 𝐵 # 0) |
diveq1bd.3 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
diveqap1bd | ⊢ (𝜑 → (𝐴 / 𝐵) = 1) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | diveq1bd.3 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | diveq1bd.1 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
3 | 1, 2 | eqeltrd 2254 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
4 | diveqap1bd.2 | . . 3 ⊢ (𝜑 → 𝐵 # 0) | |
5 | 3, 2, 4 | diveqap1ad 8755 | . 2 ⊢ (𝜑 → ((𝐴 / 𝐵) = 1 ↔ 𝐴 = 𝐵)) |
6 | 1, 5 | mpbird 167 | 1 ⊢ (𝜑 → (𝐴 / 𝐵) = 1) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1353 ∈ wcel 2148 class class class wbr 4003 (class class class)co 5874 ℂcc 7808 0cc0 7810 1c1 7811 # cap 8537 / cdiv 8628 |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4121 ax-pow 4174 ax-pr 4209 ax-un 4433 ax-setind 4536 ax-cnex 7901 ax-resscn 7902 ax-1cn 7903 ax-1re 7904 ax-icn 7905 ax-addcl 7906 ax-addrcl 7907 ax-mulcl 7908 ax-mulrcl 7909 ax-addcom 7910 ax-mulcom 7911 ax-addass 7912 ax-mulass 7913 ax-distr 7914 ax-i2m1 7915 ax-0lt1 7916 ax-1rid 7917 ax-0id 7918 ax-rnegex 7919 ax-precex 7920 ax-cnre 7921 ax-pre-ltirr 7922 ax-pre-ltwlin 7923 ax-pre-lttrn 7924 ax-pre-apti 7925 ax-pre-ltadd 7926 ax-pre-mulgt0 7927 ax-pre-mulext 7928 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-nel 2443 df-ral 2460 df-rex 2461 df-reu 2462 df-rmo 2463 df-rab 2464 df-v 2739 df-sbc 2963 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-pw 3577 df-sn 3598 df-pr 3599 df-op 3601 df-uni 3810 df-br 4004 df-opab 4065 df-id 4293 df-po 4296 df-iso 4297 df-xp 4632 df-rel 4633 df-cnv 4634 df-co 4635 df-dm 4636 df-iota 5178 df-fun 5218 df-fv 5224 df-riota 5830 df-ov 5877 df-oprab 5878 df-mpo 5879 df-pnf 7993 df-mnf 7994 df-xr 7995 df-ltxr 7996 df-le 7997 df-sub 8129 df-neg 8130 df-reap 8531 df-ap 8538 df-div 8629 |
This theorem is referenced by: dvid 14098 |
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