Showing Proof for $r^2 = R^2$
51189
The equivalence of sample correlation and R statistic for simple linear regression
34768
Proving $(p \oplus q) \oplus r=p \oplus (q \oplus r)$
55742
Showing that $f_{2n+1}=f_{n+1}^2+f_n^2$.
151803
Prove that $R$ is commutative
91101
Proving $\sqrt2$ is irrational
130045
Show that $l^2$ is a Hilbert space
32103
Show that for a $2\times 2$ matrix $A^2=0$
125212
How to Show that the Only Subspaces of $R^2$ are the zero subspace, $R^2$ itself, and the lines through the origin
6582
Prove the existence of the square root of $2$.
127882
Proofs involving orthonormal basis
86193
Rigorous proof that $dx dy=r\ dr\ d\theta$
24585
Proving that $\mathbf{W}$+$\mathbf{W^{\perp}}$=$\mathbb{R^{n}}$
37808
Show that $\gcd(a^2, b^2) = \gcd(a,b)^2$
65319
For all $x,y∈\Bbb{R}$ define that $ x\equiv y$ if$ x^2=y^2$
142513
Prove that $2xy\mid x^2+y^2-x$ implies $x$ is a perfect square.
151806
Prove that $A^k = 0 $ iff $A^2 = 0$
138931
Show that $||x+y||\cdot||x-y||\le||x||^2+||y||^2$