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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 3899 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
3 | dmgmaddnn0.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
4 | 3 | nn0cnd 12283 | . . 3 ⊢ (𝜑 → 𝑁 ∈ ℂ) |
5 | 2, 4 | addcld 10982 | . 2 ⊢ (𝜑 → (𝐴 + 𝑁) ∈ ℂ) |
6 | eldmgm 26159 | . . . . 5 ⊢ (𝐴 ∈ (ℂ ∖ (ℤ ∖ ℕ)) ↔ (𝐴 ∈ ℂ ∧ ¬ -𝐴 ∈ ℕ0)) | |
7 | 1, 6 | sylib 217 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ ℂ ∧ ¬ -𝐴 ∈ ℕ0)) |
8 | 7 | simprd 496 | . . 3 ⊢ (𝜑 → ¬ -𝐴 ∈ ℕ0) |
9 | 2, 4 | negdi2d 11334 | . . . . . . 7 ⊢ (𝜑 → -(𝐴 + 𝑁) = (-𝐴 − 𝑁)) |
10 | 9 | oveq1d 7283 | . . . . . 6 ⊢ (𝜑 → (-(𝐴 + 𝑁) + 𝑁) = ((-𝐴 − 𝑁) + 𝑁)) |
11 | 2 | negcld 11307 | . . . . . . 7 ⊢ (𝜑 → -𝐴 ∈ ℂ) |
12 | 11, 4 | npcand 11324 | . . . . . 6 ⊢ (𝜑 → ((-𝐴 − 𝑁) + 𝑁) = -𝐴) |
13 | 10, 12 | eqtrd 2778 | . . . . 5 ⊢ (𝜑 → (-(𝐴 + 𝑁) + 𝑁) = -𝐴) |
14 | 13 | adantr 481 | . . . 4 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → (-(𝐴 + 𝑁) + 𝑁) = -𝐴) |
15 | simpr 485 | . . . . 5 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → -(𝐴 + 𝑁) ∈ ℕ0) | |
16 | 3 | adantr 481 | . . . . 5 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → 𝑁 ∈ ℕ0) |
17 | 15, 16 | nn0addcld 12285 | . . . 4 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → (-(𝐴 + 𝑁) + 𝑁) ∈ ℕ0) |
18 | 14, 17 | eqeltrrd 2840 | . . 3 ⊢ ((𝜑 ∧ -(𝐴 + 𝑁) ∈ ℕ0) → -𝐴 ∈ ℕ0) |
19 | 8, 18 | mtand 813 | . 2 ⊢ (𝜑 → ¬ -(𝐴 + 𝑁) ∈ ℕ0) |
20 | eldmgm 26159 | . 2 ⊢ ((𝐴 + 𝑁) ∈ (ℂ ∖ (ℤ ∖ ℕ)) ↔ ((𝐴 + 𝑁) ∈ ℂ ∧ ¬ -(𝐴 + 𝑁) ∈ ℕ0)) | |
21 | 5, 19, 20 | sylanbrc 583 | 1 ⊢ (𝜑 → (𝐴 + 𝑁) ∈ (ℂ ∖ (ℤ ∖ ℕ))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ∖ cdif 3884 (class class class)co 7268 ℂcc 10857 + caddc 10862 − cmin 11193 -cneg 11194 ℕcn 11961 ℕ0cn0 12221 ℤcz 12307 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5222 ax-nul 5229 ax-pow 5287 ax-pr 5351 ax-un 7579 ax-resscn 10916 ax-1cn 10917 ax-icn 10918 ax-addcl 10919 ax-addrcl 10920 ax-mulcl 10921 ax-mulrcl 10922 ax-mulcom 10923 ax-addass 10924 ax-mulass 10925 ax-distr 10926 ax-i2m1 10927 ax-1ne0 10928 ax-1rid 10929 ax-rnegex 10930 ax-rrecex 10931 ax-cnre 10932 ax-pre-lttri 10933 ax-pre-lttrn 10934 ax-pre-ltadd 10935 ax-pre-mulgt0 10936 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3071 df-rab 3073 df-v 3432 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4258 df-if 4461 df-pw 4536 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4841 df-iun 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5485 df-eprel 5491 df-po 5499 df-so 5500 df-fr 5540 df-we 5542 df-xp 5591 df-rel 5592 df-cnv 5593 df-co 5594 df-dm 5595 df-rn 5596 df-res 5597 df-ima 5598 df-pred 6196 df-ord 6263 df-on 6264 df-lim 6265 df-suc 6266 df-iota 6385 df-fun 6429 df-fn 6430 df-f 6431 df-f1 6432 df-fo 6433 df-f1o 6434 df-fv 6435 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7704 df-2nd 7822 df-frecs 8085 df-wrecs 8116 df-recs 8190 df-rdg 8229 df-er 8486 df-en 8722 df-dom 8723 df-sdom 8724 df-pnf 10999 df-mnf 11000 df-xr 11001 df-ltxr 11002 df-le 11003 df-sub 11195 df-neg 11196 df-nn 11962 df-n0 12222 df-z 12308 |
This theorem is referenced by: lgamcvg2 26192 gamp1 26195 |
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