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Mirrors > Home > MPE Home > Th. List > dmgmaddnn0 | Structured version Visualization version GIF version |
Description: If 𝐴 is not a nonpositive integer and 𝑁 is a nonnegative integer, then 𝐴 + 𝑁 is also not a nonpositive integer. (Contributed by Mario Carneiro, 6-Jul-2017.) |
Ref | Expression |
---|---|
dmgmn0.a | ⊢ (𝜑 → 𝐴 ∈ (ℂ ∖ (ℤ ∖ ℕ))) |
dmgmaddnn0.n | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
Ref | Expression |
---|---|
dmgmaddnn0 | ⊢ (𝜑 → (𝐴 + 𝑁) ∈ (ℂ ∖ (ℤ ∖ ℕ))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmgmn0.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ (ℂ ∖ (ℤ ∖ ℕ))) | |
2 | 1 | eldifad 3904 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
3 | dmgmaddnn0.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
4 | 3 | nn0cnd 12345 | . . 3 ⊢ (𝜑 → 𝑁 ∈ ℂ) |
5 | 2, 4 | addcld 11044 | . 2 ⊢ (𝜑 → (𝐴 + 𝑁) ∈ ℂ) |
6 | eldmgm 26220 | . . . . 5 ⊢ (𝐴 ∈ (ℂ ∖ (ℤ ∖ ℕ)) ↔ (𝐴 ∈ ℂ ∧ ¬ -𝐴 ∈ ℕ0)) | |
7 | 1, 6 | sylib 217 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ ℂ ∧ ¬ -𝐴 ∈ ℕ0)) |
8 | 7 | simprd 497 | . . 3 ⊢ (𝜑 → ¬ -𝐴 ∈ ℕ0) |
9 | 2, 4 | negdi2d 11396 | . . . . . . 7 ⊢ (𝜑 → -(𝐴 + 𝑁) = (-𝐴 − 𝑁)) |
10 | 9 | oveq1d 7322 | . . . . . 6 ⊢ (𝜑 → (-(𝐴 + 𝑁) + 𝑁) = ((-𝐴 − 𝑁) + 𝑁)) |
11 | 2 | negcld 11369 | . . . . . . 7 ⊢ (𝜑 → -𝐴 ∈ ℂ) |
12 | 11, 4 | npcand 11386 | . . . . . 6 ⊢ (𝜑 → ((-𝐴 − 𝑁) + 𝑁) = -𝐴) |
13 | 10, 12 | eqtrd 2776 | . . . . 5 ⊢ (𝜑 → (-(𝐴 + 𝑁) + 𝑁) = -𝐴) |
14 | 13 | adantr 482 | . . . 4 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → (-(𝐴 + 𝑁) + 𝑁) = -𝐴) |
15 | simpr 486 | . . . . 5 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → -(𝐴 + 𝑁) ∈ ℕ0) | |
16 | 3 | adantr 482 | . . . . 5 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → 𝑁 ∈ ℕ0) |
17 | 15, 16 | nn0addcld 12347 | . . . 4 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → (-(𝐴 + 𝑁) + 𝑁) ∈ ℕ0) |
18 | 14, 17 | eqeltrrd 2838 | . . 3 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → -𝐴 ∈ ℕ0) |
19 | 8, 18 | mtand 814 | . 2 ⊢ (𝜑 → ¬ -(𝐴 + 𝑁) ∈ ℕ0) |
20 | eldmgm 26220 | . 2 ⊢ ((𝐴 + 𝑁) ∈ (ℂ ∖ (ℤ ∖ ℕ)) ↔ ((𝐴 + 𝑁) ∈ ℂ ∧ ¬ -(𝐴 + 𝑁) ∈ ℕ0)) | |
21 | 5, 19, 20 | sylanbrc 584 | 1 ⊢ (𝜑 → (𝐴 + 𝑁) ∈ (ℂ ∖ (ℤ ∖ ℕ))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 397 = wceq 1539 ∈ wcel 2104 ∖ cdif 3889 (class class class)co 7307 ℂcc 10919 + caddc 10924 − cmin 11255 -cneg 11256 ℕcn 12023 ℕ0cn0 12283 ℤcz 12369 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 ax-un 7620 ax-resscn 10978 ax-1cn 10979 ax-icn 10980 ax-addcl 10981 ax-addrcl 10982 ax-mulcl 10983 ax-mulrcl 10984 ax-mulcom 10985 ax-addass 10986 ax-mulass 10987 ax-distr 10988 ax-i2m1 10989 ax-1ne0 10990 ax-1rid 10991 ax-rnegex 10992 ax-rrecex 10993 ax-cnre 10994 ax-pre-lttri 10995 ax-pre-lttrn 10996 ax-pre-ltadd 10997 ax-pre-mulgt0 10998 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3332 df-rab 3333 df-v 3439 df-sbc 3722 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-iun 4933 df-br 5082 df-opab 5144 df-mpt 5165 df-tr 5199 df-id 5500 df-eprel 5506 df-po 5514 df-so 5515 df-fr 5555 df-we 5557 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-ima 5613 df-pred 6217 df-ord 6284 df-on 6285 df-lim 6286 df-suc 6287 df-iota 6410 df-fun 6460 df-fn 6461 df-f 6462 df-f1 6463 df-fo 6464 df-f1o 6465 df-fv 6466 df-riota 7264 df-ov 7310 df-oprab 7311 df-mpo 7312 df-om 7745 df-2nd 7864 df-frecs 8128 df-wrecs 8159 df-recs 8233 df-rdg 8272 df-er 8529 df-en 8765 df-dom 8766 df-sdom 8767 df-pnf 11061 df-mnf 11062 df-xr 11063 df-ltxr 11064 df-le 11065 df-sub 11257 df-neg 11258 df-nn 12024 df-n0 12284 df-z 12370 |
This theorem is referenced by: lgamcvg2 26253 gamp1 26256 |
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