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refute

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refute
▪ I. † refute, n.1 Obs. Forms: 4 refuit, 4–6 refuyt(e, (5 reffuyt), 4–6 refut(e. [a. OF. refuite, f. refuir, f. re- re- + fuir to flee: cf. refuge n.] 1. = refuge n. 1.a 1325 Prose Psalter xxx[i]. 3 Be to me in-to God defendour, & in-to þe hous of refut, þat þou mak me sauf. c 1400 Rom. Rose 3840 Th... Oxford English Dictionary
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refute
refute/rɪˈfju:t; rɪ`fjut/ v[Tn]prove (a statement, an opinion, etc or a person) to be wrong 证明（某说法、 意见等或某人）不对; 反驳; 驳斥 refute a claim, a theory, an argument 驳斥某要求、 理论、 论点 refute an opponent 反驳对方. 牛津英汉双解词典
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Four Scientific Reasons That Refute Evolution | The Institute for ...
Genetic entropy refutes evolution by ensuring that information is constantly garbled and by limiting the total generations to far fewer than evolutionary history requires. 4. All-or-nothing vital features refute evolution. Finally, transitioning between basic kinds is not possible because it would disable vital creature features.
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New LHC results refute Fermilab's "hole" in the Standard ...
4 days ago — ... leptons) that make up matter and ... For years and over three separate experiments, “lepton universality” appeared to violate the Standard Model.
bigthink.com 0.0 0.6 0.0
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Researchers refute Google DeepMind's claim that it used ...
15 hours ago — Google's AI research division, Google DeepMind, announced that it had discovered 2.2 million 'new crystal structures that are theoretically ...
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Refute a given statement.
While it is true that recycling does come with some costs, it is actually quite cost-effective. The costs associated with recycling are more than offset by the cost savings of reduced waste management costs. Not only that, but recycling can be beneficial for businesses and communities in other areas...
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To prove or refute: $\lim_{N \to \infty} \frac{1}{N} \sum_{n=1}^{N} f\left( \frac{n}{N} \right) = 1$ then $f \in R\left( \left[ 0, 1 \right] \right)$ Let $f : \left[ 0, 1 \right] \to \mathbb{R}$ such that $$\lim_{N \...
Note that in the limit you only ever evaluate the function for rational values. Thus the values your function $f$ takes for irrationals are completely irrelevant to the limit. Thus if you start with a function $f_0$ fulfilling the condition on the limit, every function that coincides with $f_0$ for ...
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Eigenvalues -prove or refute Hey guys, I need to prove or refute that once given an eigenvalue t of a matrix AB and B is invertible, so t is also eigenvalue of A. I believe it's not true, but sadly beliefs are not e...
Let $A=B^{-1}$, then $t=1$. Clearly there are invertible matrices $B$ which don't have $1$ as an eigenvalue.
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Prove of refute uniform convergence of integral. I can't prove (or refute) uniform convergence of $$ \int_{1}^{+\infty} \arctan\frac{2y}{x^2+y^2}dx,\;y\in\mathbb{R} $$ I tried Weierstrass M-test, but failed. Can't f...
Note that $\arctan(\cdot)$ is increasing on $[0,1]$ and for $x \geqslant 1$ and $y > 0$ we have $$0 \leqslant \frac{2y}{x^2 + y^2} \leqslant \frac{2xy}{x^2 + y^2} \leqslant 1$$ Thus, $$\sup_{y \in \mathbb{R^+}}\int_n^\infty \arctan\frac{2y}{x^2 + y^2} \, dx > \sup_{y \in \mathbb{R^+}}\int_n^{2n} \ar...
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Prove\Refute: for every norm in $\mathbb{R}^n: \left \| x \right \|\leq \max (\left \| x+y \right \|,\left \| x-y \right \|)$ I need to prove or refute that for every norm in $\mathbb{R}^n$:$ \left \| x \right \|\leq ...
$2x = (x + y) + (x - y)$. So the triangle inequality gives $2\|x\| \le \|x+y\| + \|x-y\|$.
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Francis W. on LinkedIn: I'm going to refute the rumor again. In the ...
I'm going to refute the rumor again. In the past two days, Western politicians have been panicking again, saying that China's reopening of the wet market is…
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Prove or refute $A\subseteq B \wedge B \nsubseteq C \rightarrow A \nsubseteq C$ I have to prove or refute $A\subseteq B \wedge B \nsubseteq C \rightarrow A \nsubseteq C$ My refutation: $A = \\{1\\}, B = \\{1, 2\\}, C...
You are correct that the statement is not true. This is also evident from the following Venn diagram: ![enter image description here](
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How do I prove or refute the statement $f(n) = O(f(n/2))$? I need to prove(or refute) the following asymptotic statement: $f(n) = O(f(n/2))$. I am not sure, but the only thing that came in my mind so far, is that we c...
I will interpret your question as follows. > Denote by $F$ the set of all strictly increasing, strictly positive, real-valued functions that are defined on $\mathbb{R}$. Is it true that, for all $f \in F$, the following holds: $$ \limsup_{x\rightarrow\infty}\frac{f(x)}{f(x/2)} < \infty? \tag{*}\labe...
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Propositional calculus - Prove or refute - Not a contradiction Could anyone help me with this? Prove or refute: ![enter image description here]( What is the definition of $\nvdash_{CPL}$? And what does it mean abou...
$\nvdash_{\text{CPL}}$ means : " **not** derivable in Classical Propositional Logic. We can use the Completeness Theorem : if $\vDash$, then $\vdash$. Thus, assume that $A$ is a contradiction. This means that, for every _valuation_ $v$, we have $v(A)= \text F$. Thus, there is no valuation $v$ such t...
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Prove/refute: Every tautology is contingent I'm asking to prove/refute the following statement: > Every tautology is contingent. According to definition of contingent: > _A statement that is neither self-contradic...
Seeing as "tautology" and "contingent statement" are meta-language definitions (they cannot be expressed in the logical system itself; we're talking _about_ the system) there isn't really a more "formal" way to do it. You can _expand_ your claim by specifying _why_ a tautology cannot be contingent "...
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