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Mirrors > Home > MPE Home > Th. List > subeq0bd | Structured version Visualization version GIF version |
Description: If two complex numbers are equal, their difference is zero. Consequence of subeq0ad 10440. Converse of subeq0d 10438. Contrapositive of subne0ad 10441. (Contributed by David Moews, 28-Feb-2017.) |
Ref | Expression |
---|---|
subeq0bd.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
subeq0bd.2 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
subeq0bd | ⊢ (𝜑 → (𝐴 − 𝐵) = 0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | subeq0bd.2 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | subeq0bd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
3 | 1, 2 | eqeltrrd 2731 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℂ) |
4 | 2, 3 | subeq0ad 10440 | . 2 ⊢ (𝜑 → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) |
5 | 1, 4 | mpbird 247 | 1 ⊢ (𝜑 → (𝐴 − 𝐵) = 0) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1523 ∈ wcel 2030 (class class class)co 6690 ℂcc 9972 0cc0 9974 − cmin 10304 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1762 ax-4 1777 ax-5 1879 ax-6 1945 ax-7 1981 ax-8 2032 ax-9 2039 ax-10 2059 ax-11 2074 ax-12 2087 ax-13 2282 ax-ext 2631 ax-sep 4814 ax-nul 4822 ax-pow 4873 ax-pr 4936 ax-un 6991 ax-resscn 10031 ax-1cn 10032 ax-icn 10033 ax-addcl 10034 ax-addrcl 10035 ax-mulcl 10036 ax-mulrcl 10037 ax-mulcom 10038 ax-addass 10039 ax-mulass 10040 ax-distr 10041 ax-i2m1 10042 ax-1ne0 10043 ax-1rid 10044 ax-rnegex 10045 ax-rrecex 10046 ax-cnre 10047 ax-pre-lttri 10048 ax-pre-lttrn 10049 ax-pre-ltadd 10050 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1055 df-3an 1056 df-tru 1526 df-ex 1745 df-nf 1750 df-sb 1938 df-eu 2502 df-mo 2503 df-clab 2638 df-cleq 2644 df-clel 2647 df-nfc 2782 df-ne 2824 df-nel 2927 df-ral 2946 df-rex 2947 df-reu 2948 df-rab 2950 df-v 3233 df-sbc 3469 df-csb 3567 df-dif 3610 df-un 3612 df-in 3614 df-ss 3621 df-nul 3949 df-if 4120 df-pw 4193 df-sn 4211 df-pr 4213 df-op 4217 df-uni 4469 df-br 4686 df-opab 4746 df-mpt 4763 df-id 5053 df-po 5064 df-so 5065 df-xp 5149 df-rel 5150 df-cnv 5151 df-co 5152 df-dm 5153 df-rn 5154 df-res 5155 df-ima 5156 df-iota 5889 df-fun 5928 df-fn 5929 df-f 5930 df-f1 5931 df-fo 5932 df-f1o 5933 df-fv 5934 df-riota 6651 df-ov 6693 df-oprab 6694 df-mpt2 6695 df-er 7787 df-en 7998 df-dom 7999 df-sdom 8000 df-pnf 10114 df-mnf 10115 df-ltxr 10117 df-sub 10306 |
This theorem is referenced by: sylow1lem1 18059 rrxmvallem 23233 rrxmetlem 23236 dv11cn 23809 coeeulem 24025 plyexmo 24113 chordthmlem3 24606 atantayl2 24710 axcontlem2 25890 ipasslem8 27820 2sqmod 29776 bj-subcom 33284 int-addsimpd 38795 bcc0 38856 dvbdfbdioolem2 40462 volioc 40506 etransclem14 40783 etransclem35 40804 ovolval2lem 41178 sharhght 41375 |
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