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Theorem ptolemy 13385
Description: Ptolemy's Theorem. This theorem is named after the Greek astronomer and mathematician Ptolemy (Claudius Ptolemaeus). This particular version is expressed using the sine function. It is proved by expanding all the multiplication of sines to a product of cosines of differences using sinmul 11685, then using algebraic simplification to show that both sides are equal. This formalization is based on the proof in "Trigonometry" by Gelfand and Saul. This is Metamath 100 proof #95. (Contributed by David A. Wheeler, 31-May-2015.)
Assertion
Ref Expression
ptolemy (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((sin‘𝐴) · (sin‘𝐵)) + ((sin‘𝐶) · (sin‘𝐷))) = ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))))

Proof of Theorem ptolemy
StepHypRef Expression
1 addcl 7878 . . . . . . . . . . 11 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → (𝐶 + 𝐷) ∈ ℂ)
213ad2ant2 1009 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐶 + 𝐷) ∈ ℂ)
32coscld 11652 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐶 + 𝐷)) ∈ ℂ)
43negnegd 8200 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → --(cos‘(𝐶 + 𝐷)) = (cos‘(𝐶 + 𝐷)))
5 addid2 8037 . . . . . . . . . . . . . . 15 ((𝐶 + 𝐷) ∈ ℂ → (0 + (𝐶 + 𝐷)) = (𝐶 + 𝐷))
65oveq1d 5857 . . . . . . . . . . . . . 14 ((𝐶 + 𝐷) ∈ ℂ → ((0 + (𝐶 + 𝐷)) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))) = ((𝐶 + 𝐷) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))))
72, 6syl 14 . . . . . . . . . . . . 13 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((0 + (𝐶 + 𝐷)) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))) = ((𝐶 + 𝐷) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))))
8 0cnd 7892 . . . . . . . . . . . . . 14 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → 0 ∈ ℂ)
9 addcl 7878 . . . . . . . . . . . . . . . 16 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 𝐵) ∈ ℂ)
109adantr 274 . . . . . . . . . . . . . . 15 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐴 + 𝐵) ∈ ℂ)
11103adant3 1007 . . . . . . . . . . . . . 14 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐴 + 𝐵) ∈ ℂ)
128, 11, 2pnpcan2d 8247 . . . . . . . . . . . . 13 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((0 + (𝐶 + 𝐷)) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))) = (0 − (𝐴 + 𝐵)))
13 simp3 989 . . . . . . . . . . . . . 14 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π)
1413oveq2d 5858 . . . . . . . . . . . . 13 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐶 + 𝐷) − ((𝐴 + 𝐵) + (𝐶 + 𝐷))) = ((𝐶 + 𝐷) − π))
157, 12, 143eqtr3rd 2207 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐶 + 𝐷) − π) = (0 − (𝐴 + 𝐵)))
16 df-neg 8072 . . . . . . . . . . . 12 -(𝐴 + 𝐵) = (0 − (𝐴 + 𝐵))
1715, 16eqtr4di 2217 . . . . . . . . . . 11 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐶 + 𝐷) − π) = -(𝐴 + 𝐵))
1817fveq2d 5490 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐶 + 𝐷) − π)) = (cos‘-(𝐴 + 𝐵)))
19 cosmpi 13377 . . . . . . . . . . 11 ((𝐶 + 𝐷) ∈ ℂ → (cos‘((𝐶 + 𝐷) − π)) = -(cos‘(𝐶 + 𝐷)))
202, 19syl 14 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐶 + 𝐷) − π)) = -(cos‘(𝐶 + 𝐷)))
21 cosneg 11668 . . . . . . . . . . 11 ((𝐴 + 𝐵) ∈ ℂ → (cos‘-(𝐴 + 𝐵)) = (cos‘(𝐴 + 𝐵)))
2211, 21syl 14 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘-(𝐴 + 𝐵)) = (cos‘(𝐴 + 𝐵)))
2318, 20, 223eqtr3d 2206 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → -(cos‘(𝐶 + 𝐷)) = (cos‘(𝐴 + 𝐵)))
2423negeqd 8093 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → --(cos‘(𝐶 + 𝐷)) = -(cos‘(𝐴 + 𝐵)))
254, 24eqtr3d 2200 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐶 + 𝐷)) = -(cos‘(𝐴 + 𝐵)))
2625oveq2d 5858 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) = ((cos‘(𝐶𝐷)) − -(cos‘(𝐴 + 𝐵))))
27 subcl 8097 . . . . . . . . . 10 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → (𝐶𝐷) ∈ ℂ)
2827adantl 275 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐶𝐷) ∈ ℂ)
2928coscld 11652 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (cos‘(𝐶𝐷)) ∈ ℂ)
30293adant3 1007 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐶𝐷)) ∈ ℂ)
3111coscld 11652 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐴 + 𝐵)) ∈ ℂ)
3230, 31subnegd 8216 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐶𝐷)) − -(cos‘(𝐴 + 𝐵))) = ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))))
3326, 32eqtrd 2198 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) = ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))))
3433oveq1d 5857 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2) = (((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) / 2))
3534oveq2d 5858 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2)) = ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) / 2)))
36 subcl 8097 . . . . . . . 8 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴𝐵) ∈ ℂ)
37363ad2ant1 1008 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐴𝐵) ∈ ℂ)
3837coscld 11652 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐴𝐵)) ∈ ℂ)
3938, 31subcld 8209 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) ∈ ℂ)
4030, 31addcld 7918 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) ∈ ℂ)
41 2cn 8928 . . . . . . 7 2 ∈ ℂ
42 2ap0 8950 . . . . . . 7 2 # 0
4341, 42pm3.2i 270 . . . . . 6 (2 ∈ ℂ ∧ 2 # 0)
4443a1i 9 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (2 ∈ ℂ ∧ 2 # 0))
45 divdirap 8593 . . . . 5 ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) ∈ ℂ ∧ ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) ∈ ℂ ∧ (2 ∈ ℂ ∧ 2 # 0)) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) + ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵)))) / 2) = ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) / 2)))
4639, 40, 44, 45syl3anc 1228 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) + ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵)))) / 2) = ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) / 2)))
4738, 31, 30nppcan3d 8236 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) + ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵)))) = ((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))))
4847oveq1d 5857 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) + ((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵)))) / 2) = (((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) / 2))
4946, 48eqtr3d 2200 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) + (cos‘(𝐴 + 𝐵))) / 2)) = (((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) / 2))
5035, 49eqtrd 2198 . 2 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2)) = (((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) / 2))
51 sinmul 11685 . . . 4 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((sin‘𝐴) · (sin‘𝐵)) = (((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2))
52513ad2ant1 1008 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((sin‘𝐴) · (sin‘𝐵)) = (((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2))
53 sinmul 11685 . . . 4 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → ((sin‘𝐶) · (sin‘𝐷)) = (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2))
54533ad2ant2 1009 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((sin‘𝐶) · (sin‘𝐷)) = (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2))
5552, 54oveq12d 5860 . 2 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((sin‘𝐴) · (sin‘𝐵)) + ((sin‘𝐶) · (sin‘𝐷))) = ((((cos‘(𝐴𝐵)) − (cos‘(𝐴 + 𝐵))) / 2) + (((cos‘(𝐶𝐷)) − (cos‘(𝐶 + 𝐷))) / 2)))
56 simplr 520 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → 𝐵 ∈ ℂ)
57 simpll 519 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → 𝐴 ∈ ℂ)
58 simprl 521 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → 𝐶 ∈ ℂ)
5956, 57, 58pnpcan2d 8247 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((𝐵 + 𝐶) − (𝐴 + 𝐶)) = (𝐵𝐴))
6059fveq2d 5490 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) = (cos‘(𝐵𝐴)))
61603adant3 1007 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) = (cos‘(𝐵𝐴)))
621adantl 275 . . . . . . . . . . . . 13 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐶 + 𝐷) ∈ ℂ)
6310, 62, 283jca 1167 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((𝐴 + 𝐵) ∈ ℂ ∧ (𝐶 + 𝐷) ∈ ℂ ∧ (𝐶𝐷) ∈ ℂ))
64633adant3 1007 . . . . . . . . . . 11 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐵) ∈ ℂ ∧ (𝐶 + 𝐷) ∈ ℂ ∧ (𝐶𝐷) ∈ ℂ))
65 addass 7883 . . . . . . . . . . 11 (((𝐴 + 𝐵) ∈ ℂ ∧ (𝐶 + 𝐷) ∈ ℂ ∧ (𝐶𝐷) ∈ ℂ) → (((𝐴 + 𝐵) + (𝐶 + 𝐷)) + (𝐶𝐷)) = ((𝐴 + 𝐵) + ((𝐶 + 𝐷) + (𝐶𝐷))))
6664, 65syl 14 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((𝐴 + 𝐵) + (𝐶 + 𝐷)) + (𝐶𝐷)) = ((𝐴 + 𝐵) + ((𝐶 + 𝐷) + (𝐶𝐷))))
67 oveq1 5849 . . . . . . . . . . 11 (((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π → (((𝐴 + 𝐵) + (𝐶 + 𝐷)) + (𝐶𝐷)) = (π + (𝐶𝐷)))
68673ad2ant3 1010 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((𝐴 + 𝐵) + (𝐶 + 𝐷)) + (𝐶𝐷)) = (π + (𝐶𝐷)))
69 simpl 108 . . . . . . . . . . . . . 14 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → 𝐶 ∈ ℂ)
70 simpr 109 . . . . . . . . . . . . . 14 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → 𝐷 ∈ ℂ)
7169, 70, 693jca 1167 . . . . . . . . . . . . 13 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ ∧ 𝐶 ∈ ℂ))
72713ad2ant2 1009 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ ∧ 𝐶 ∈ ℂ))
73 ppncan 8140 . . . . . . . . . . . . 13 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐶 + 𝐷) + (𝐶𝐷)) = (𝐶 + 𝐶))
7473oveq2d 5858 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐵) + ((𝐶 + 𝐷) + (𝐶𝐷))) = ((𝐴 + 𝐵) + (𝐶 + 𝐶)))
7572, 74syl 14 . . . . . . . . . . 11 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐵) + ((𝐶 + 𝐷) + (𝐶𝐷))) = ((𝐴 + 𝐵) + (𝐶 + 𝐶)))
76 simp1 987 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ))
7769, 69jca 304 . . . . . . . . . . . . 13 ((𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) → (𝐶 ∈ ℂ ∧ 𝐶 ∈ ℂ))
78773ad2ant2 1009 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (𝐶 ∈ ℂ ∧ 𝐶 ∈ ℂ))
79 add4 8059 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐶 ∈ ℂ)) → ((𝐴 + 𝐵) + (𝐶 + 𝐶)) = ((𝐴 + 𝐶) + (𝐵 + 𝐶)))
8076, 78, 79syl2anc 409 . . . . . . . . . . 11 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐵) + (𝐶 + 𝐶)) = ((𝐴 + 𝐶) + (𝐵 + 𝐶)))
81 addcl 7878 . . . . . . . . . . . . . . 15 ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 + 𝐶) ∈ ℂ)
8281ad2ant2r 501 . . . . . . . . . . . . . 14 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐴 + 𝐶) ∈ ℂ)
83 addcl 7878 . . . . . . . . . . . . . . 15 ((𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐵 + 𝐶) ∈ ℂ)
8483ad2ant2lr 502 . . . . . . . . . . . . . 14 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐵 + 𝐶) ∈ ℂ)
8582, 84jca 304 . . . . . . . . . . . . 13 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((𝐴 + 𝐶) ∈ ℂ ∧ (𝐵 + 𝐶) ∈ ℂ))
86853adant3 1007 . . . . . . . . . . . 12 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐶) ∈ ℂ ∧ (𝐵 + 𝐶) ∈ ℂ))
87 addcom 8035 . . . . . . . . . . . 12 (((𝐴 + 𝐶) ∈ ℂ ∧ (𝐵 + 𝐶) ∈ ℂ) → ((𝐴 + 𝐶) + (𝐵 + 𝐶)) = ((𝐵 + 𝐶) + (𝐴 + 𝐶)))
8886, 87syl 14 . . . . . . . . . . 11 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐶) + (𝐵 + 𝐶)) = ((𝐵 + 𝐶) + (𝐴 + 𝐶)))
8975, 80, 883eqtrd 2202 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐴 + 𝐵) + ((𝐶 + 𝐷) + (𝐶𝐷))) = ((𝐵 + 𝐶) + (𝐴 + 𝐶)))
9066, 68, 893eqtr3rd 2207 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐵 + 𝐶) + (𝐴 + 𝐶)) = (π + (𝐶𝐷)))
91 picn 13348 . . . . . . . . . . 11 π ∈ ℂ
92 addcom 8035 . . . . . . . . . . 11 ((π ∈ ℂ ∧ (𝐶𝐷) ∈ ℂ) → (π + (𝐶𝐷)) = ((𝐶𝐷) + π))
9391, 28, 92sylancr 411 . . . . . . . . . 10 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (π + (𝐶𝐷)) = ((𝐶𝐷) + π))
94933adant3 1007 . . . . . . . . 9 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (π + (𝐶𝐷)) = ((𝐶𝐷) + π))
9590, 94eqtrd 2198 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((𝐵 + 𝐶) + (𝐴 + 𝐶)) = ((𝐶𝐷) + π))
9695fveq2d 5490 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶))) = (cos‘((𝐶𝐷) + π)))
97 cosppi 13379 . . . . . . . . 9 ((𝐶𝐷) ∈ ℂ → (cos‘((𝐶𝐷) + π)) = -(cos‘(𝐶𝐷)))
9828, 97syl 14 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (cos‘((𝐶𝐷) + π)) = -(cos‘(𝐶𝐷)))
99983adant3 1007 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐶𝐷) + π)) = -(cos‘(𝐶𝐷)))
10096, 99eqtrd 2198 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶))) = -(cos‘(𝐶𝐷)))
10161, 100oveq12d 5860 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) = ((cos‘(𝐵𝐴)) − -(cos‘(𝐶𝐷))))
102 subcl 8097 . . . . . . . . . 10 ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (𝐵𝐴) ∈ ℂ)
103102ancoms 266 . . . . . . . . 9 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐵𝐴) ∈ ℂ)
104103adantr 274 . . . . . . . 8 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (𝐵𝐴) ∈ ℂ)
105104coscld 11652 . . . . . . 7 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → (cos‘(𝐵𝐴)) ∈ ℂ)
106105, 29subnegd 8216 . . . . . 6 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((cos‘(𝐵𝐴)) − -(cos‘(𝐶𝐷))) = ((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))))
1071063adant3 1007 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐵𝐴)) − -(cos‘(𝐶𝐷))) = ((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))))
108101, 107eqtrd 2198 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) = ((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))))
109108oveq1d 5857 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) / 2) = (((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))) / 2))
110 sinmul 11685 . . . . 5 (((𝐵 + 𝐶) ∈ ℂ ∧ (𝐴 + 𝐶) ∈ ℂ) → ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))) = (((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) / 2))
11184, 82, 110syl2anc 409 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))) = (((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) / 2))
1121113adant3 1007 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))) = (((cos‘((𝐵 + 𝐶) − (𝐴 + 𝐶))) − (cos‘((𝐵 + 𝐶) + (𝐴 + 𝐶)))) / 2))
113 cosneg 11668 . . . . . . . 8 ((𝐴𝐵) ∈ ℂ → (cos‘-(𝐴𝐵)) = (cos‘(𝐴𝐵)))
11436, 113syl 14 . . . . . . 7 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (cos‘-(𝐴𝐵)) = (cos‘(𝐴𝐵)))
115 negsubdi2 8157 . . . . . . . 8 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → -(𝐴𝐵) = (𝐵𝐴))
116115fveq2d 5490 . . . . . . 7 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (cos‘-(𝐴𝐵)) = (cos‘(𝐵𝐴)))
117114, 116eqtr3d 2200 . . . . . 6 ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (cos‘(𝐴𝐵)) = (cos‘(𝐵𝐴)))
1181173ad2ant1 1008 . . . . 5 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (cos‘(𝐴𝐵)) = (cos‘(𝐵𝐴)))
119118oveq1d 5857 . . . 4 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) = ((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))))
120119oveq1d 5857 . . 3 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) / 2) = (((cos‘(𝐵𝐴)) + (cos‘(𝐶𝐷))) / 2))
121109, 112, 1203eqtr4d 2208 . 2 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))) = (((cos‘(𝐴𝐵)) + (cos‘(𝐶𝐷))) / 2))
12250, 55, 1213eqtr4d 2208 1 (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ) ∧ ((𝐴 + 𝐵) + (𝐶 + 𝐷)) = π) → (((sin‘𝐴) · (sin‘𝐵)) + ((sin‘𝐶) · (sin‘𝐷))) = ((sin‘(𝐵 + 𝐶)) · (sin‘(𝐴 + 𝐶))))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  w3a 968   = wceq 1343  wcel 2136   class class class wbr 3982  cfv 5188  (class class class)co 5842  cc 7751  0cc0 7753   + caddc 7756   · cmul 7758  cmin 8069  -cneg 8070   # cap 8479   / cdiv 8568  2c2 8908  sincsin 11585  cosccos 11586  πcpi 11588
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-coll 4097  ax-sep 4100  ax-nul 4108  ax-pow 4153  ax-pr 4187  ax-un 4411  ax-setind 4514  ax-iinf 4565  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-mulrcl 7852  ax-addcom 7853  ax-mulcom 7854  ax-addass 7855  ax-mulass 7856  ax-distr 7857  ax-i2m1 7858  ax-0lt1 7859  ax-1rid 7860  ax-0id 7861  ax-rnegex 7862  ax-precex 7863  ax-cnre 7864  ax-pre-ltirr 7865  ax-pre-ltwlin 7866  ax-pre-lttrn 7867  ax-pre-apti 7868  ax-pre-ltadd 7869  ax-pre-mulgt0 7870  ax-pre-mulext 7871  ax-arch 7872  ax-caucvg 7873  ax-pre-suploc 7874  ax-addf 7875  ax-mulf 7876
This theorem depends on definitions:  df-bi 116  df-stab 821  df-dc 825  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-rmo 2452  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-nul 3410  df-if 3521  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-int 3825  df-iun 3868  df-disj 3960  df-br 3983  df-opab 4044  df-mpt 4045  df-tr 4081  df-id 4271  df-po 4274  df-iso 4275  df-iord 4344  df-on 4346  df-ilim 4347  df-suc 4349  df-iom 4568  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-f1 5193  df-fo 5194  df-f1o 5195  df-fv 5196  df-isom 5197  df-riota 5798  df-ov 5845  df-oprab 5846  df-mpo 5847  df-of 6050  df-1st 6108  df-2nd 6109  df-recs 6273  df-irdg 6338  df-frec 6359  df-1o 6384  df-oadd 6388  df-er 6501  df-map 6616  df-pm 6617  df-en 6707  df-dom 6708  df-fin 6709  df-sup 6949  df-inf 6950  df-pnf 7935  df-mnf 7936  df-xr 7937  df-ltxr 7938  df-le 7939  df-sub 8071  df-neg 8072  df-reap 8473  df-ap 8480  df-div 8569  df-inn 8858  df-2 8916  df-3 8917  df-4 8918  df-5 8919  df-6 8920  df-7 8921  df-8 8922  df-9 8923  df-n0 9115  df-z 9192  df-uz 9467  df-q 9558  df-rp 9590  df-xneg 9708  df-xadd 9709  df-ioo 9828  df-ioc 9829  df-ico 9830  df-icc 9831  df-fz 9945  df-fzo 10078  df-seqfrec 10381  df-exp 10455  df-fac 10639  df-bc 10661  df-ihash 10689  df-shft 10757  df-cj 10784  df-re 10785  df-im 10786  df-rsqrt 10940  df-abs 10941  df-clim 11220  df-sumdc 11295  df-ef 11589  df-sin 11591  df-cos 11592  df-pi 11594  df-rest 12558  df-topgen 12577  df-psmet 12627  df-xmet 12628  df-met 12629  df-bl 12630  df-mopn 12631  df-top 12636  df-topon 12649  df-bases 12681  df-ntr 12736  df-cn 12828  df-cnp 12829  df-tx 12893  df-cncf 13198  df-limced 13265  df-dvap 13266
This theorem is referenced by: (None)
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