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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 11602. Converse of subeq0d 11603. Contrapositive of subne0ad 11605. (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 2861 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| 4 | 2, 3 | subeq0ad 11602 | . 2 ⊢ (𝜑 → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) |
| 5 | 1, 4 | mpbird 260 | 1 ⊢ (𝜑 → (𝐴 − 𝐵) = 0) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 (class class class)co 7414 ℂcc 11123 0cc0 11125 − cmin 11466 |
| 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 7737 ax-resscn 11182 ax-1cn 11183 ax-icn 11184 ax-addcl 11185 ax-addrcl 11186 ax-mulcl 11187 ax-mulrcl 11188 ax-mulcom 11189 ax-addass 11190 ax-mulass 11191 ax-distr 11192 ax-i2m1 11193 ax-1ne0 11194 ax-1rid 11195 ax-rnegex 11196 ax-rrecex 11197 ax-cnre 11198 ax-pre-lttri 11199 ax-pre-lttrn 11200 ax-pre-ltadd 11201 |
| 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-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 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-er 8697 df-en 8954 df-dom 8955 df-sdom 8956 df-pnf 11270 df-mnf 11271 df-ltxr 11273 df-sub 11468 |
| This theorem is used by: sylow1lem1 19726 rrxmvallem 25633 rrxmetlem 25636 dv11cn 26229 coeeulem 26451 plyexmo 26546 chordthmlem3 27072 atantayl2 27176 2sqmod 27673 addsq2nreurex 27681 axcontlem2 29423 ipasslem8 31319 ccatws1f1o 33394 constrrtlc1 34243 constrrtlc2 34244 constrrtcc 34246 bj-subcom 38061 int-addsimpd 45016 bcc0 45165 dvbdfbdioolem2 46758 volioc 46801 etransclem14 47077 etransclem35 47098 ovolval2lem 47472 sharhght 47694 itschlc0yqe 49691 |
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