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Mirrors > Home > ILE Home > Th. List > fzonmapblen | GIF version |
Description: The result of subtracting a nonnegative integer from a positive integer and adding another nonnegative integer which is less than the first one is less then the positive integer. (Contributed by Alexander van der Vekens, 19-May-2018.) |
Ref | Expression |
---|---|
fzonmapblen | ⊢ ((𝐴 ∈ (0..^𝑁) ∧ 𝐵 ∈ (0..^𝑁) ∧ 𝐵 < 𝐴) → (𝐵 + (𝑁 − 𝐴)) < 𝑁) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfzo0 10074 | . . . 4 ⊢ (𝐴 ∈ (0..^𝑁) ↔ (𝐴 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐴 < 𝑁)) | |
2 | nn0re 9093 | . . . . . 6 ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℝ) | |
3 | nnre 8834 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
4 | 2, 3 | anim12i 336 | . . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝑁 ∈ ℕ) → (𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
5 | 4 | 3adant3 1002 | . . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐴 < 𝑁) → (𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
6 | 1, 5 | sylbi 120 | . . 3 ⊢ (𝐴 ∈ (0..^𝑁) → (𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
7 | elfzoelz 10039 | . . . 4 ⊢ (𝐵 ∈ (0..^𝑁) → 𝐵 ∈ ℤ) | |
8 | 7 | zred 9280 | . . 3 ⊢ (𝐵 ∈ (0..^𝑁) → 𝐵 ∈ ℝ) |
9 | simpr 109 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → 𝐵 ∈ ℝ) | |
10 | simpll 519 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → 𝐴 ∈ ℝ) | |
11 | resubcl 8133 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝑁 − 𝐴) ∈ ℝ) | |
12 | 11 | ancoms 266 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (𝑁 − 𝐴) ∈ ℝ) |
13 | 12 | adantr 274 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → (𝑁 − 𝐴) ∈ ℝ) |
14 | 9, 10, 13 | ltadd1d 8407 | . . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → (𝐵 < 𝐴 ↔ (𝐵 + (𝑁 − 𝐴)) < (𝐴 + (𝑁 − 𝐴)))) |
15 | 14 | biimpa 294 | . . . . 5 ⊢ ((((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) ∧ 𝐵 < 𝐴) → (𝐵 + (𝑁 − 𝐴)) < (𝐴 + (𝑁 − 𝐴))) |
16 | recn 7859 | . . . . . . . . 9 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) | |
17 | recn 7859 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℝ → 𝑁 ∈ ℂ) | |
18 | 16, 17 | anim12i 336 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) → (𝐴 ∈ ℂ ∧ 𝑁 ∈ ℂ)) |
19 | 18 | adantr 274 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → (𝐴 ∈ ℂ ∧ 𝑁 ∈ ℂ)) |
20 | 19 | adantr 274 | . . . . . 6 ⊢ ((((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) ∧ 𝐵 < 𝐴) → (𝐴 ∈ ℂ ∧ 𝑁 ∈ ℂ)) |
21 | pncan3 8077 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝑁 ∈ ℂ) → (𝐴 + (𝑁 − 𝐴)) = 𝑁) | |
22 | 20, 21 | syl 14 | . . . . 5 ⊢ ((((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) ∧ 𝐵 < 𝐴) → (𝐴 + (𝑁 − 𝐴)) = 𝑁) |
23 | 15, 22 | breqtrd 3990 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) ∧ 𝐵 < 𝐴) → (𝐵 + (𝑁 − 𝐴)) < 𝑁) |
24 | 23 | ex 114 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ) ∧ 𝐵 ∈ ℝ) → (𝐵 < 𝐴 → (𝐵 + (𝑁 − 𝐴)) < 𝑁)) |
25 | 6, 8, 24 | syl2an 287 | . 2 ⊢ ((𝐴 ∈ (0..^𝑁) ∧ 𝐵 ∈ (0..^𝑁)) → (𝐵 < 𝐴 → (𝐵 + (𝑁 − 𝐴)) < 𝑁)) |
26 | 25 | 3impia 1182 | 1 ⊢ ((𝐴 ∈ (0..^𝑁) ∧ 𝐵 ∈ (0..^𝑁) ∧ 𝐵 < 𝐴) → (𝐵 + (𝑁 − 𝐴)) < 𝑁) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∧ w3a 963 = wceq 1335 ∈ wcel 2128 class class class wbr 3965 (class class class)co 5821 ℂcc 7724 ℝcr 7725 0cc0 7726 + caddc 7729 < clt 7906 − cmin 8040 ℕcn 8827 ℕ0cn0 9084 ..^cfzo 10034 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-13 2130 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4135 ax-pr 4169 ax-un 4393 ax-setind 4495 ax-cnex 7817 ax-resscn 7818 ax-1cn 7819 ax-1re 7820 ax-icn 7821 ax-addcl 7822 ax-addrcl 7823 ax-mulcl 7824 ax-addcom 7826 ax-addass 7828 ax-distr 7830 ax-i2m1 7831 ax-0lt1 7832 ax-0id 7834 ax-rnegex 7835 ax-cnre 7837 ax-pre-ltirr 7838 ax-pre-ltwlin 7839 ax-pre-lttrn 7840 ax-pre-ltadd 7842 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-nel 2423 df-ral 2440 df-rex 2441 df-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 df-csb 3032 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3773 df-int 3808 df-iun 3851 df-br 3966 df-opab 4026 df-mpt 4027 df-id 4253 df-xp 4591 df-rel 4592 df-cnv 4593 df-co 4594 df-dm 4595 df-rn 4596 df-res 4597 df-ima 4598 df-iota 5134 df-fun 5171 df-fn 5172 df-f 5173 df-fv 5177 df-riota 5777 df-ov 5824 df-oprab 5825 df-mpo 5826 df-1st 6085 df-2nd 6086 df-pnf 7908 df-mnf 7909 df-xr 7910 df-ltxr 7911 df-le 7912 df-sub 8042 df-neg 8043 df-inn 8828 df-n0 9085 df-z 9162 df-uz 9434 df-fz 9906 df-fzo 10035 |
This theorem is referenced by: (None) |
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