Mathematical Thinking Stanford, W1 Assignment 2

1. Simplify the symbolic statements. (b) (p≥7)∧(p<12), 7≤p<12 (c) (x>5)∧(x<7), 5<x<7 (d) (x<4)∧(x<6), x<4 (e) $(y<4)∧(y^2 <9), y^2<9$ (f) (x≥0)∧(x≤0), x=0 2. Express each of your simplified statements from question 1 in natural English. (b) p is greater than or equal to 7 and less than 12. (c) x is greater than 5, and less than 7. (d) x is less than 4 (e) y squared is less than 9 (f) x is equal to 0 ...

2023-9-20 · 3 min · Atom.X

Mathematical Thinking Stanford, W1 Assignment 1

Truth table φ ∧ ψ = ψ ∧ φ ∧ conjunction 合取: anyone is false, φ ∧ ψ will be false ∨ disjunction 析取: anyone is truth, φ ∨ ψ will be truth. ∨ : Communism, Soviet Union, China, Socialism, anyone is truth, then it is truth, Big, resources absorbing power, Totalitarianism ∧ : Germany, Greek alphabet - Wikipedia φ: phi ψ: psi θ: Theta Quiz True table game, triary logic ...

2023-9-17 · 5 min · Atom.X

Mathematical Thinking- Stanford

Math symbols Mathematical Thinking- Stanford About instructor Assignment & Quiz The course contents sub documents as below: MTS W8 Quiz MTS W8 Assignment 0 MTS W7 Assignment 0 MTS W6 Assignment 8 MTS W5 Quiz MTS W4 Assignment 0 MTS W3 Assignment 5 MTS W3 Assignment 0 MTS W2 Assignment 4 MTS W2 Assignment 3 MTS W2 Quiz MTS W1 Assignment 2

2023-9-16 · 1 min · Atom.X

Data Scientest

This is the answer to the questionnaire to Open course Data Scientest Original questionnaire: Data Scientist - [EN] Describe your academic / professional background to date. 5 sentence minimum I majored in E-commerce of 3 years in Wuhan Vocational & Technical College of China. Diploma of Collegial Studies (DCS)/ Post-secondary education / Associate Degree, Vocational Technology Education and Training What were your motivations for applying for this courses? 5 sentence minimum in the past 10+ years, I have been working in the environmental, agriculture and food supply chain sectors for both e-commerce and non profit organizations in Asia, it’s interesting to research the data. ...

2023-9-7 · 1 min · Atom.X

Mathematical Thinking Stanford, W4 Assignment 6

¬ [$∃x$A(x)] = $∀x$[¬A(x)] ? ¬ [$∃x$A(x)] if it is not the case that at least a x satisfies A(x), then for all x are not not satisfy A(x), so for all x, ¬A(x) is true. $∀x$[¬A(x)] Prove false There is an even prime bigger than 2 x are parts of natural number set $N$, Prime number P(x), Even number E(x) $∃x$[E(x)P(x)∧(x>2)] ¬ {$∃x$[E(x)P(x)∧(x>2)]} is True $∀x$[E(x)P(x) ⇒ (2≥ x)] ...

2023-9-1 · 4 min · Atom.X