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Mirrors > Home > MPE Home > Th. List > Mathboxes > etransclem9 | Structured version Visualization version GIF version |
Description: If 𝐾 divides 𝑁 but 𝐾 does not divide 𝑀 then 𝑀 + 𝑁 cannot be zero. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
Ref | Expression |
---|---|
etransclem9.k | ⊢ (𝜑 → 𝐾 ∈ ℤ) |
etransclem9.kn0 | ⊢ (𝜑 → 𝐾 ≠ 0) |
etransclem9.m | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
etransclem9.n | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
etransclem9.km | ⊢ (𝜑 → ¬ 𝐾 ∥ 𝑀) |
etransclem9.kn | ⊢ (𝜑 → 𝐾 ∥ 𝑁) |
Ref | Expression |
---|---|
etransclem9 | ⊢ (𝜑 → (𝑀 + 𝑁) ≠ 0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | etransclem9.km | . . . 4 ⊢ (𝜑 → ¬ 𝐾 ∥ 𝑀) | |
2 | etransclem9.k | . . . . 5 ⊢ (𝜑 → 𝐾 ∈ ℤ) | |
3 | etransclem9.kn0 | . . . . 5 ⊢ (𝜑 → 𝐾 ≠ 0) | |
4 | etransclem9.m | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
5 | dvdsval2 15610 | . . . . 5 ⊢ ((𝐾 ∈ ℤ ∧ 𝐾 ≠ 0 ∧ 𝑀 ∈ ℤ) → (𝐾 ∥ 𝑀 ↔ (𝑀 / 𝐾) ∈ ℤ)) | |
6 | 2, 3, 4, 5 | syl3anc 1367 | . . . 4 ⊢ (𝜑 → (𝐾 ∥ 𝑀 ↔ (𝑀 / 𝐾) ∈ ℤ)) |
7 | 1, 6 | mtbid 326 | . . 3 ⊢ (𝜑 → ¬ (𝑀 / 𝐾) ∈ ℤ) |
8 | df-neg 10873 | . . . . . . 7 ⊢ -𝑁 = (0 − 𝑁) | |
9 | 8 | a1i 11 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → -𝑁 = (0 − 𝑁)) |
10 | oveq1 7163 | . . . . . . . 8 ⊢ ((𝑀 + 𝑁) = 0 → ((𝑀 + 𝑁) − 𝑁) = (0 − 𝑁)) | |
11 | 10 | eqcomd 2827 | . . . . . . 7 ⊢ ((𝑀 + 𝑁) = 0 → (0 − 𝑁) = ((𝑀 + 𝑁) − 𝑁)) |
12 | 11 | adantl 484 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → (0 − 𝑁) = ((𝑀 + 𝑁) − 𝑁)) |
13 | 4 | zcnd 12089 | . . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ℂ) |
14 | etransclem9.n | . . . . . . . . 9 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
15 | 14 | zcnd 12089 | . . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℂ) |
16 | 13, 15 | pncand 10998 | . . . . . . 7 ⊢ (𝜑 → ((𝑀 + 𝑁) − 𝑁) = 𝑀) |
17 | 16 | adantr 483 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → ((𝑀 + 𝑁) − 𝑁) = 𝑀) |
18 | 9, 12, 17 | 3eqtrrd 2861 | . . . . 5 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → 𝑀 = -𝑁) |
19 | 18 | oveq1d 7171 | . . . 4 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → (𝑀 / 𝐾) = (-𝑁 / 𝐾)) |
20 | etransclem9.kn | . . . . . . 7 ⊢ (𝜑 → 𝐾 ∥ 𝑁) | |
21 | dvdsnegb 15627 | . . . . . . . 8 ⊢ ((𝐾 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝐾 ∥ 𝑁 ↔ 𝐾 ∥ -𝑁)) | |
22 | 2, 14, 21 | syl2anc 586 | . . . . . . 7 ⊢ (𝜑 → (𝐾 ∥ 𝑁 ↔ 𝐾 ∥ -𝑁)) |
23 | 20, 22 | mpbid 234 | . . . . . 6 ⊢ (𝜑 → 𝐾 ∥ -𝑁) |
24 | 14 | znegcld 12090 | . . . . . . 7 ⊢ (𝜑 → -𝑁 ∈ ℤ) |
25 | dvdsval2 15610 | . . . . . . 7 ⊢ ((𝐾 ∈ ℤ ∧ 𝐾 ≠ 0 ∧ -𝑁 ∈ ℤ) → (𝐾 ∥ -𝑁 ↔ (-𝑁 / 𝐾) ∈ ℤ)) | |
26 | 2, 3, 24, 25 | syl3anc 1367 | . . . . . 6 ⊢ (𝜑 → (𝐾 ∥ -𝑁 ↔ (-𝑁 / 𝐾) ∈ ℤ)) |
27 | 23, 26 | mpbid 234 | . . . . 5 ⊢ (𝜑 → (-𝑁 / 𝐾) ∈ ℤ) |
28 | 27 | adantr 483 | . . . 4 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → (-𝑁 / 𝐾) ∈ ℤ) |
29 | 19, 28 | eqeltrd 2913 | . . 3 ⊢ ((𝜑 ∧ (𝑀 + 𝑁) = 0) → (𝑀 / 𝐾) ∈ ℤ) |
30 | 7, 29 | mtand 814 | . 2 ⊢ (𝜑 → ¬ (𝑀 + 𝑁) = 0) |
31 | 30 | neqned 3023 | 1 ⊢ (𝜑 → (𝑀 + 𝑁) ≠ 0) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1537 ∈ wcel 2114 ≠ wne 3016 class class class wbr 5066 (class class class)co 7156 0cc0 10537 + caddc 10540 − cmin 10870 -cneg 10871 / cdiv 11297 ℤcz 11982 ∥ cdvds 15607 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 ax-pre-mulgt0 10614 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-pred 6148 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-om 7581 df-wrecs 7947 df-recs 8008 df-rdg 8046 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 df-sub 10872 df-neg 10873 df-div 11298 df-nn 11639 df-z 11983 df-dvds 15608 |
This theorem is referenced by: etransclem44 42583 |
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