在数学公式中，符号“∀”表示什么含义？
Show the answer and explanation
Correct answer
B. 任意
Principle or equation
∀ 是逻辑量词，表示“对于所有的”或“任意”。
Why this answer is correct
在数学中，∀ 读作“对于任意”，用于全称命题。
Example
∀x>0, x²>0 表示对所有正数 x，x² 大于 0。
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