2015年8月31日 · In Olav Kallenberg's Foundations of Modern Probability he uses the notation $f \vee g$ and $f \wedge g$ where $f, g$ are two functions from a set $\Omega$ to $\mathbb{R}$. What does this notation m...

2019年3月28日 · 当 个体域 为有限集时，可以采用以下方法消去 全称量词。 笨蛋！ 哭鼻子！ 殘渣！ 擰！ 額，我記不太清了，可是好像全稱量詞不是這麼用的吧。 應該是. 量詞後面接的應該是個體變元，不是 函數。

2019年8月6日 · If you are saying that two things happen, it's a conjunction $\wedge$; if you are saying that at least one of two things happen, it's a disjunction $\vee$; if you are saying that if one thing happens, then a second thing will happen, then it's …

2013年5月16日 · (b) Given two functions $f$ and $g$ define a function $f\vee g$ by $(f\vee g) (x) = \max\{f(x), g(x)\}$. Show that if $f$ and $g$ are continuous at $x_0$ then $f\vee g$ is continuous at $x_0$.

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