Top network posts

• 26 What precisely is a vacuous truth?
• 23 Are transcendental numbers computable?
• 15 Show that $\sup(A \cup B)=\max\{\sup A,\sup B\}$
• 14 A module over an algebra. Is it a vector space?
• 10 Empty space connected? If so, then what are its components?
• 9 Categories: if $A \times B$ exists then $B \times A$ exists
• 9 Are $R=K[a,b,c,d]/(ad-bc, a^2c-b^3, bd^2-c^3, ac^2-b^2d)$ and $K[x^4,x^3y,xy^3,y^4]$ isomorphic?
• View more network posts →