| Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > constraddcl | Structured version Visualization version GIF version | ||
| Description: Constructive numbers are closed under complex addition. Item (1) of Theorem 7.10 of [Stewart] p. 96. (Contributed by Thierry Arnoux, 2-Nov-2025.) |
| Ref | Expression |
|---|---|
| constraddcl.1 | ⊢ (𝜑 → 𝑋 ∈ Constr) |
| constraddcl.2 | ⊢ (𝜑 → 𝑌 ∈ Constr) |
| Ref | Expression |
|---|---|
| constraddcl | ⊢ (𝜑 → (𝑋 + 𝑌) ∈ Constr) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpr 490 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 = 𝑌) → 𝑋 = 𝑌) | |
| 2 | 1 | oveq2d 7430 | . . 3 ⊢ ((𝜑 ∧ 𝑋 = 𝑌) → (𝑋 + 𝑋) = (𝑋 + 𝑌)) |
| 3 | 0nn0 12544 | . . . . . . 7 ⊢ 0 ∈ ℕ0 | |
| 4 | 3 | a1i 11 | . . . . . 6 ⊢ (𝜑 → 0 ∈ ℕ0) |
| 5 | 4 | nn0constr 34272 | . . . . 5 ⊢ (𝜑 → 0 ∈ Constr) |
| 6 | constraddcl.1 | . . . . 5 ⊢ (𝜑 → 𝑋 ∈ Constr) | |
| 7 | 2re 12340 | . . . . . 6 ⊢ 2 ∈ ℝ | |
| 8 | 7 | a1i 11 | . . . . 5 ⊢ (𝜑 → 2 ∈ ℝ) |
| 9 | 6 | constrcn 34271 | . . . . . 6 ⊢ (𝜑 → 𝑋 ∈ ℂ) |
| 10 | 9, 9 | addcld 11253 | . . . . 5 ⊢ (𝜑 → (𝑋 + 𝑋) ∈ ℂ) |
| 11 | 2cnd 12344 | . . . . . . . 8 ⊢ (𝜑 → 2 ∈ ℂ) | |
| 12 | 0cnd 11224 | . . . . . . . . 9 ⊢ (𝜑 → 0 ∈ ℂ) | |
| 13 | 9, 12 | subcld 11594 | . . . . . . . 8 ⊢ (𝜑 → (𝑋 − 0) ∈ ℂ) |
| 14 | 11, 13 | mulcld 11254 | . . . . . . 7 ⊢ (𝜑 → (2 · (𝑋 − 0)) ∈ ℂ) |
| 15 | 14 | addlidd 11436 | . . . . . 6 ⊢ (𝜑 → (0 + (2 · (𝑋 − 0))) = (2 · (𝑋 − 0))) |
| 16 | 9 | subid1d 11583 | . . . . . . 7 ⊢ (𝜑 → (𝑋 − 0) = 𝑋) |
| 17 | 16 | oveq2d 7430 | . . . . . 6 ⊢ (𝜑 → (2 · (𝑋 − 0)) = (2 · 𝑋)) |
| 18 | 9 | 2timesd 12512 | . . . . . 6 ⊢ (𝜑 → (2 · 𝑋) = (𝑋 + 𝑋)) |
| 19 | 15, 17, 18 | 3eqtrrd 2800 | . . . . 5 ⊢ (𝜑 → (𝑋 + 𝑋) = (0 + (2 · (𝑋 − 0)))) |
| 20 | 9, 9 | pncand 11595 | . . . . . . 7 ⊢ (𝜑 → ((𝑋 + 𝑋) − 𝑋) = 𝑋) |
| 21 | 20, 16 | eqtr4d 2798 | . . . . . 6 ⊢ (𝜑 → ((𝑋 + 𝑋) − 𝑋) = (𝑋 − 0)) |
| 22 | 21 | fveq2d 6883 | . . . . 5 ⊢ (𝜑 → (abs‘((𝑋 + 𝑋) − 𝑋)) = (abs‘(𝑋 − 0))) |
| 23 | 5, 6, 6, 6, 5, 8, 10, 19, 22 | constrlccl 34268 | . . . 4 ⊢ (𝜑 → (𝑋 + 𝑋) ∈ Constr) |
| 24 | 23 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑋 = 𝑌) → (𝑋 + 𝑋) ∈ Constr) |
| 25 | 2, 24 | eqeltrrd 2861 | . 2 ⊢ ((𝜑 ∧ 𝑋 = 𝑌) → (𝑋 + 𝑌) ∈ Constr) |
| 26 | 6 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 𝑋 ∈ Constr) |
| 27 | constraddcl.2 | . . . 4 ⊢ (𝜑 → 𝑌 ∈ Constr) | |
| 28 | 27 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 𝑌 ∈ Constr) |
| 29 | 5 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 0 ∈ Constr) |
| 30 | 9 | adantr 486 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 𝑋 ∈ ℂ) |
| 31 | 27 | constrcn 34271 | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ ℂ) |
| 32 | 31 | adantr 486 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 𝑌 ∈ ℂ) |
| 33 | 30, 32 | addcld 11253 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (𝑋 + 𝑌) ∈ ℂ) |
| 34 | simpr 490 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → 𝑋 ≠ 𝑌) | |
| 35 | 30, 32 | pncan2d 11596 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → ((𝑋 + 𝑌) − 𝑋) = 𝑌) |
| 36 | 32 | subid1d 11583 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (𝑌 − 0) = 𝑌) |
| 37 | 35, 36 | eqtr4d 2798 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → ((𝑋 + 𝑌) − 𝑋) = (𝑌 − 0)) |
| 38 | 37 | fveq2d 6883 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (abs‘((𝑋 + 𝑌) − 𝑋)) = (abs‘(𝑌 − 0))) |
| 39 | 30, 32 | pncand 11595 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → ((𝑋 + 𝑌) − 𝑌) = 𝑋) |
| 40 | 30 | subid1d 11583 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (𝑋 − 0) = 𝑋) |
| 41 | 39, 40 | eqtr4d 2798 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → ((𝑋 + 𝑌) − 𝑌) = (𝑋 − 0)) |
| 42 | 41 | fveq2d 6883 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (abs‘((𝑋 + 𝑌) − 𝑌)) = (abs‘(𝑋 − 0))) |
| 43 | 26, 28, 29, 28, 26, 29, 33, 34, 38, 42 | constrcccl 34269 | . 2 ⊢ ((𝜑 ∧ 𝑋 ≠ 𝑌) → (𝑋 + 𝑌) ∈ Constr) |
| 44 | 25, 43 | pm2.61dane 3042 | 1 ⊢ (𝜑 → (𝑋 + 𝑌) ∈ Constr) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 (class class class)co 7414 ℂcc 11123 ℝcr 11124 0cc0 11125 + caddc 11128 · cmul 11130 − cmin 11466 2c2 12320 ℕ0cn0 12529 abscabs 15322 Constrcconstr 34240 |
| 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-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11181 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 ax-pre-mulgt0 11202 |
| 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-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 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-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 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-om 7864 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8456 df-2o 8457 df-er 8697 df-en 8954 df-dom 8955 df-sdom 8956 df-fin 8957 df-pnf 11270 df-mnf 11271 df-xr 11272 df-ltxr 11273 df-le 11274 df-sub 11468 df-neg 11469 df-nn 12259 df-2 12328 df-n0 12530 df-z 12617 df-constr 34241 |
| This theorem is used by: constrremulcl 34278 constrimcl 34281 constrmulcl 34282 constrreinvcl 34283 constrsdrg 34286 constrresqrtcl 34288 constrsqrtcl 34290 cos9thpinconstr 34302 |
| Copyright terms: Public domain | W3C validator |