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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 10117 | . . . 4 ⊢ (𝐴 ∈ (0..^𝑁) ↔ (𝐴 ∈ ℕ0 ∧ 𝑁 ∈ ℕ ∧ 𝐴 < 𝑁)) | |
2 | nn0re 9123 | . . . . . 6 ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℝ) | |
3 | nnre 8864 | . . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ) | |
4 | 2, 3 | anim12i 336 | . . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝑁 ∈ ℕ) → (𝐴 ∈ ℝ ∧ 𝑁 ∈ ℝ)) |
5 | 4 | 3adant3 1007 | . . . 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 10082 | . . . 4 ⊢ (𝐵 ∈ (0..^𝑁) → 𝐵 ∈ ℤ) | |
8 | 7 | zred 9313 | . . 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 8162 | . . . . . . . . 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 8436 | . . . . . 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 7886 | . . . . . . . . 9 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℂ) | |
17 | recn 7886 | . . . . . . . . 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 8106 | . . . . . 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 4008 | . . . 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 1190 | 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 968 = wceq 1343 ∈ wcel 2136 class class class wbr 3982 (class class class)co 5842 ℂcc 7751 ℝcr 7752 0cc0 7753 + caddc 7756 < clt 7933 − cmin 8069 ℕcn 8857 ℕ0cn0 9114 ..^cfzo 10077 |
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 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-cnex 7844 ax-resscn 7845 ax-1cn 7846 ax-1re 7847 ax-icn 7848 ax-addcl 7849 ax-addrcl 7850 ax-mulcl 7851 ax-addcom 7853 ax-addass 7855 ax-distr 7857 ax-i2m1 7858 ax-0lt1 7859 ax-0id 7861 ax-rnegex 7862 ax-cnre 7864 ax-pre-ltirr 7865 ax-pre-ltwlin 7866 ax-pre-lttrn 7867 ax-pre-ltadd 7869 |
This theorem depends on definitions: df-bi 116 df-3or 969 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-nel 2432 df-ral 2449 df-rex 2450 df-reu 2451 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-fv 5196 df-riota 5798 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-pnf 7935 df-mnf 7936 df-xr 7937 df-ltxr 7938 df-le 7939 df-sub 8071 df-neg 8072 df-inn 8858 df-n0 9115 df-z 9192 df-uz 9467 df-fz 9945 df-fzo 10078 |
This theorem is referenced by: (None) |
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