| Step |
Hyp |
Ref |
Expression |
| 1 |
|
4sq.1 |
⊢ 𝑆 = { 𝑛 ∣ ∃ 𝑥 ∈ ℤ ∃ 𝑦 ∈ ℤ ∃ 𝑧 ∈ ℤ ∃ 𝑤 ∈ ℤ 𝑛 = ( ( ( 𝑥 ↑ 2 ) + ( 𝑦 ↑ 2 ) ) + ( ( 𝑧 ↑ 2 ) + ( 𝑤 ↑ 2 ) ) ) } |
| 2 |
|
4sq.2 |
⊢ ( 𝜑 → 𝑁 ∈ ℕ ) |
| 3 |
|
4sq.3 |
⊢ ( 𝜑 → 𝑃 = ( ( 2 · 𝑁 ) + 1 ) ) |
| 4 |
|
4sq.4 |
⊢ ( 𝜑 → 𝑃 ∈ ℙ ) |
| 5 |
|
4sq.5 |
⊢ ( 𝜑 → ( 0 ... ( 2 · 𝑁 ) ) ⊆ 𝑆 ) |
| 6 |
|
4sq.6 |
⊢ 𝑇 = { 𝑖 ∈ ℕ ∣ ( 𝑖 · 𝑃 ) ∈ 𝑆 } |
| 7 |
|
4sq.7 |
⊢ 𝑀 = inf ( 𝑇 , ℝ , < ) |
| 8 |
|
4sq.m |
⊢ ( 𝜑 → 𝑀 ∈ ( ℤ≥ ‘ 2 ) ) |
| 9 |
|
4sq.a |
⊢ ( 𝜑 → 𝐴 ∈ ℤ ) |
| 10 |
|
4sq.b |
⊢ ( 𝜑 → 𝐵 ∈ ℤ ) |
| 11 |
|
4sq.c |
⊢ ( 𝜑 → 𝐶 ∈ ℤ ) |
| 12 |
|
4sq.d |
⊢ ( 𝜑 → 𝐷 ∈ ℤ ) |
| 13 |
|
4sq.e |
⊢ 𝐸 = ( ( ( 𝐴 + ( 𝑀 / 2 ) ) mod 𝑀 ) − ( 𝑀 / 2 ) ) |
| 14 |
|
4sq.f |
⊢ 𝐹 = ( ( ( 𝐵 + ( 𝑀 / 2 ) ) mod 𝑀 ) − ( 𝑀 / 2 ) ) |
| 15 |
|
4sq.g |
⊢ 𝐺 = ( ( ( 𝐶 + ( 𝑀 / 2 ) ) mod 𝑀 ) − ( 𝑀 / 2 ) ) |
| 16 |
|
4sq.h |
⊢ 𝐻 = ( ( ( 𝐷 + ( 𝑀 / 2 ) ) mod 𝑀 ) − ( 𝑀 / 2 ) ) |
| 17 |
|
4sq.r |
⊢ 𝑅 = ( ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) / 𝑀 ) |
| 18 |
|
4sq.p |
⊢ ( 𝜑 → ( 𝑀 · 𝑃 ) = ( ( ( 𝐴 ↑ 2 ) + ( 𝐵 ↑ 2 ) ) + ( ( 𝐶 ↑ 2 ) + ( 𝐷 ↑ 2 ) ) ) ) |
| 19 |
|
eluz2nn |
⊢ ( 𝑀 ∈ ( ℤ≥ ‘ 2 ) → 𝑀 ∈ ℕ ) |
| 20 |
8 19
|
syl |
⊢ ( 𝜑 → 𝑀 ∈ ℕ ) |
| 21 |
20
|
nnred |
⊢ ( 𝜑 → 𝑀 ∈ ℝ ) |
| 22 |
21
|
resqcld |
⊢ ( 𝜑 → ( 𝑀 ↑ 2 ) ∈ ℝ ) |
| 23 |
22
|
rehalfcld |
⊢ ( 𝜑 → ( ( 𝑀 ↑ 2 ) / 2 ) ∈ ℝ ) |
| 24 |
23
|
rehalfcld |
⊢ ( 𝜑 → ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ∈ ℝ ) |
| 25 |
24
|
recnd |
⊢ ( 𝜑 → ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ∈ ℂ ) |
| 26 |
9 20 13
|
4sqlem5 |
⊢ ( 𝜑 → ( 𝐸 ∈ ℤ ∧ ( ( 𝐴 − 𝐸 ) / 𝑀 ) ∈ ℤ ) ) |
| 27 |
26
|
simpld |
⊢ ( 𝜑 → 𝐸 ∈ ℤ ) |
| 28 |
|
zsqcl |
⊢ ( 𝐸 ∈ ℤ → ( 𝐸 ↑ 2 ) ∈ ℤ ) |
| 29 |
27 28
|
syl |
⊢ ( 𝜑 → ( 𝐸 ↑ 2 ) ∈ ℤ ) |
| 30 |
29
|
zred |
⊢ ( 𝜑 → ( 𝐸 ↑ 2 ) ∈ ℝ ) |
| 31 |
30
|
recnd |
⊢ ( 𝜑 → ( 𝐸 ↑ 2 ) ∈ ℂ ) |
| 32 |
10 20 14
|
4sqlem5 |
⊢ ( 𝜑 → ( 𝐹 ∈ ℤ ∧ ( ( 𝐵 − 𝐹 ) / 𝑀 ) ∈ ℤ ) ) |
| 33 |
32
|
simpld |
⊢ ( 𝜑 → 𝐹 ∈ ℤ ) |
| 34 |
|
zsqcl |
⊢ ( 𝐹 ∈ ℤ → ( 𝐹 ↑ 2 ) ∈ ℤ ) |
| 35 |
33 34
|
syl |
⊢ ( 𝜑 → ( 𝐹 ↑ 2 ) ∈ ℤ ) |
| 36 |
35
|
zred |
⊢ ( 𝜑 → ( 𝐹 ↑ 2 ) ∈ ℝ ) |
| 37 |
36
|
recnd |
⊢ ( 𝜑 → ( 𝐹 ↑ 2 ) ∈ ℂ ) |
| 38 |
25 25 31 37
|
addsub4d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) ) |
| 39 |
23
|
recnd |
⊢ ( 𝜑 → ( ( 𝑀 ↑ 2 ) / 2 ) ∈ ℂ ) |
| 40 |
39
|
2halvesd |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) = ( ( 𝑀 ↑ 2 ) / 2 ) ) |
| 41 |
40
|
oveq1d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ) |
| 42 |
38 41
|
eqtr3d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ) |
| 43 |
42
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ) |
| 44 |
22
|
recnd |
⊢ ( 𝜑 → ( 𝑀 ↑ 2 ) ∈ ℂ ) |
| 45 |
44
|
2halvesd |
⊢ ( 𝜑 → ( ( ( 𝑀 ↑ 2 ) / 2 ) + ( ( 𝑀 ↑ 2 ) / 2 ) ) = ( 𝑀 ↑ 2 ) ) |
| 46 |
45
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( 𝑀 ↑ 2 ) / 2 ) + ( ( 𝑀 ↑ 2 ) / 2 ) ) = ( 𝑀 ↑ 2 ) ) |
| 47 |
21
|
recnd |
⊢ ( 𝜑 → 𝑀 ∈ ℂ ) |
| 48 |
47
|
sqvald |
⊢ ( 𝜑 → ( 𝑀 ↑ 2 ) = ( 𝑀 · 𝑀 ) ) |
| 49 |
48
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( 𝑀 ↑ 2 ) = ( 𝑀 · 𝑀 ) ) |
| 50 |
|
simpr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → 𝑅 = 𝑀 ) |
| 51 |
17 50
|
eqtr3id |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) / 𝑀 ) = 𝑀 ) |
| 52 |
51
|
oveq1d |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) / 𝑀 ) · 𝑀 ) = ( 𝑀 · 𝑀 ) ) |
| 53 |
30 36
|
readdcld |
⊢ ( 𝜑 → ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ∈ ℝ ) |
| 54 |
11 20 15
|
4sqlem5 |
⊢ ( 𝜑 → ( 𝐺 ∈ ℤ ∧ ( ( 𝐶 − 𝐺 ) / 𝑀 ) ∈ ℤ ) ) |
| 55 |
54
|
simpld |
⊢ ( 𝜑 → 𝐺 ∈ ℤ ) |
| 56 |
|
zsqcl |
⊢ ( 𝐺 ∈ ℤ → ( 𝐺 ↑ 2 ) ∈ ℤ ) |
| 57 |
55 56
|
syl |
⊢ ( 𝜑 → ( 𝐺 ↑ 2 ) ∈ ℤ ) |
| 58 |
57
|
zred |
⊢ ( 𝜑 → ( 𝐺 ↑ 2 ) ∈ ℝ ) |
| 59 |
12 20 16
|
4sqlem5 |
⊢ ( 𝜑 → ( 𝐻 ∈ ℤ ∧ ( ( 𝐷 − 𝐻 ) / 𝑀 ) ∈ ℤ ) ) |
| 60 |
59
|
simpld |
⊢ ( 𝜑 → 𝐻 ∈ ℤ ) |
| 61 |
|
zsqcl |
⊢ ( 𝐻 ∈ ℤ → ( 𝐻 ↑ 2 ) ∈ ℤ ) |
| 62 |
60 61
|
syl |
⊢ ( 𝜑 → ( 𝐻 ↑ 2 ) ∈ ℤ ) |
| 63 |
62
|
zred |
⊢ ( 𝜑 → ( 𝐻 ↑ 2 ) ∈ ℝ ) |
| 64 |
58 63
|
readdcld |
⊢ ( 𝜑 → ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ∈ ℝ ) |
| 65 |
53 64
|
readdcld |
⊢ ( 𝜑 → ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ∈ ℝ ) |
| 66 |
65
|
recnd |
⊢ ( 𝜑 → ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ∈ ℂ ) |
| 67 |
20
|
nnne0d |
⊢ ( 𝜑 → 𝑀 ≠ 0 ) |
| 68 |
66 47 67
|
divcan1d |
⊢ ( 𝜑 → ( ( ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) / 𝑀 ) · 𝑀 ) = ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 69 |
68
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) / 𝑀 ) · 𝑀 ) = ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 70 |
49 52 69
|
3eqtr2rd |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = ( 𝑀 ↑ 2 ) ) |
| 71 |
46 70
|
oveq12d |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) + ( ( 𝑀 ↑ 2 ) / 2 ) ) − ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = ( ( 𝑀 ↑ 2 ) − ( 𝑀 ↑ 2 ) ) ) |
| 72 |
53
|
recnd |
⊢ ( 𝜑 → ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ∈ ℂ ) |
| 73 |
64
|
recnd |
⊢ ( 𝜑 → ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ∈ ℂ ) |
| 74 |
39 39 72 73
|
addsub4d |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) + ( ( 𝑀 ↑ 2 ) / 2 ) ) − ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) ) |
| 75 |
74
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) + ( ( 𝑀 ↑ 2 ) / 2 ) ) − ( ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) + ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) ) |
| 76 |
44
|
subidd |
⊢ ( 𝜑 → ( ( 𝑀 ↑ 2 ) − ( 𝑀 ↑ 2 ) ) = 0 ) |
| 77 |
76
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( 𝑀 ↑ 2 ) − ( 𝑀 ↑ 2 ) ) = 0 ) |
| 78 |
71 75 77
|
3eqtr3d |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = 0 ) |
| 79 |
23 53
|
resubcld |
⊢ ( 𝜑 → ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ∈ ℝ ) |
| 80 |
9 20 13
|
4sqlem7 |
⊢ ( 𝜑 → ( 𝐸 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) |
| 81 |
10 20 14
|
4sqlem7 |
⊢ ( 𝜑 → ( 𝐹 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) |
| 82 |
30 36 24 24 80 81
|
le2addd |
⊢ ( 𝜑 → ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 83 |
82 40
|
breqtrd |
⊢ ( 𝜑 → ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ≤ ( ( 𝑀 ↑ 2 ) / 2 ) ) |
| 84 |
23 53
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ↔ ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ≤ ( ( 𝑀 ↑ 2 ) / 2 ) ) ) |
| 85 |
83 84
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ) |
| 86 |
23 64
|
resubcld |
⊢ ( 𝜑 → ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ∈ ℝ ) |
| 87 |
11 20 15
|
4sqlem7 |
⊢ ( 𝜑 → ( 𝐺 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) |
| 88 |
12 20 16
|
4sqlem7 |
⊢ ( 𝜑 → ( 𝐻 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) |
| 89 |
58 63 24 24 87 88
|
le2addd |
⊢ ( 𝜑 → ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 90 |
89 40
|
breqtrd |
⊢ ( 𝜑 → ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ≤ ( ( 𝑀 ↑ 2 ) / 2 ) ) |
| 91 |
23 64
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ↔ ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ≤ ( ( 𝑀 ↑ 2 ) / 2 ) ) ) |
| 92 |
90 91
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 93 |
|
add20 |
⊢ ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ∈ ℝ ∧ 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) ) ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ∈ ℝ ∧ 0 ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = 0 ↔ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = 0 ∧ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = 0 ) ) ) |
| 94 |
79 85 86 92 93
|
syl22anc |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = 0 ↔ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = 0 ∧ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = 0 ) ) ) |
| 95 |
94
|
biimpa |
⊢ ( ( 𝜑 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) = 0 ) → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = 0 ∧ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = 0 ) ) |
| 96 |
78 95
|
syldan |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = 0 ∧ ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = 0 ) ) |
| 97 |
96
|
simpld |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐸 ↑ 2 ) + ( 𝐹 ↑ 2 ) ) ) = 0 ) |
| 98 |
43 97
|
eqtrd |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = 0 ) |
| 99 |
24 30
|
resubcld |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) ∈ ℝ ) |
| 100 |
24 30
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) ↔ ( 𝐸 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 101 |
80 100
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) ) |
| 102 |
24 36
|
resubcld |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ∈ ℝ ) |
| 103 |
24 36
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ↔ ( 𝐹 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 104 |
81 103
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) |
| 105 |
|
add20 |
⊢ ( ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) ∈ ℝ ∧ 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) ) ∧ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ∈ ℝ ∧ 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) ) → ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = 0 ↔ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) = 0 ) ) ) |
| 106 |
99 101 102 104 105
|
syl22anc |
⊢ ( 𝜑 → ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = 0 ↔ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) = 0 ) ) ) |
| 107 |
106
|
biimpa |
⊢ ( ( 𝜑 ∧ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) ) = 0 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) = 0 ) ) |
| 108 |
98 107
|
syldan |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) = 0 ) ) |
| 109 |
58
|
recnd |
⊢ ( 𝜑 → ( 𝐺 ↑ 2 ) ∈ ℂ ) |
| 110 |
63
|
recnd |
⊢ ( 𝜑 → ( 𝐻 ↑ 2 ) ∈ ℂ ) |
| 111 |
25 25 109 110
|
addsub4d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) ) |
| 112 |
40
|
oveq1d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) + ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 113 |
111 112
|
eqtr3d |
⊢ ( 𝜑 → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 114 |
113
|
adantr |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) ) |
| 115 |
96
|
simprd |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( 𝑀 ↑ 2 ) / 2 ) − ( ( 𝐺 ↑ 2 ) + ( 𝐻 ↑ 2 ) ) ) = 0 ) |
| 116 |
114 115
|
eqtrd |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = 0 ) |
| 117 |
24 58
|
resubcld |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) ∈ ℝ ) |
| 118 |
24 58
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) ↔ ( 𝐺 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 119 |
87 118
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) ) |
| 120 |
24 63
|
resubcld |
⊢ ( 𝜑 → ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ∈ ℝ ) |
| 121 |
24 63
|
subge0d |
⊢ ( 𝜑 → ( 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ↔ ( 𝐻 ↑ 2 ) ≤ ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) ) ) |
| 122 |
88 121
|
mpbird |
⊢ ( 𝜑 → 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) |
| 123 |
|
add20 |
⊢ ( ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) ∈ ℝ ∧ 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) ) ∧ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ∈ ℝ ∧ 0 ≤ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) ) → ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = 0 ↔ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) = 0 ) ) ) |
| 124 |
117 119 120 122 123
|
syl22anc |
⊢ ( 𝜑 → ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = 0 ↔ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) = 0 ) ) ) |
| 125 |
124
|
biimpa |
⊢ ( ( 𝜑 ∧ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) + ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) ) = 0 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) = 0 ) ) |
| 126 |
116 125
|
syldan |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) = 0 ) ) |
| 127 |
108 126
|
jca |
⊢ ( ( 𝜑 ∧ 𝑅 = 𝑀 ) → ( ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐸 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐹 ↑ 2 ) ) = 0 ) ∧ ( ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐺 ↑ 2 ) ) = 0 ∧ ( ( ( ( 𝑀 ↑ 2 ) / 2 ) / 2 ) − ( 𝐻 ↑ 2 ) ) = 0 ) ) ) |