2 ms·
"[a, a)" and "a ≤ x < a" are actually shorthand for {x∈ℝ | a ≤ x < a}, which is the empty set ∅. This makes perfect sense.
by nayuki 4y ago
"[a, a)" and "a ≤ x < a" are actually shorthand for {x∈ℝ | a ≤ x < a}, which is the empty set ∅. This makes perfect sense.