$\huge{%n}$

$\huge{%n}$

$\huge{∁_UA}$

$\huge{∁_UB}$

$\huge{(∁_UA)∪(∁_UB)}$

$\huge{(∁_UA)∩(∁_UB)}$

U

补集的性质

q1, f, g, h, i = Polygon((0, 0), (10, 0), (10, 6), (0, 6))
A = PointIn(Polygon[(2, 2), (8, 2), (8, 4), (2, 4)])
c = Circle(A, 2)
B = PointIn(Polygon[(2, 2), (8, 2), (8, 4), (2, 4)])
d = Circle(B, 2)
a(x, y) = LeftSide[c] > RightSide[c] ∧ 0 < x < 10 ∧ 0 < y < 6
b = false
e(x, y) = LeftSide[d] > RightSide[d] ∧ 0 < x < 10 ∧ 0 < y < 6
j = false
k(x, y) = a(x, y) ∧ e(x, y)
m(x, y) = a(x, y) ∨ e(x, y)
l = true
n = false