Why is $\langle x| x' \rangle=\delta(x-x')$?
104055
How is the "normalisation" of non-normalizable states chosen?
91627
What is a primary decomposition of the ideal $I = \langle xy, x - yz \rangle$?
105141
$\mathbb R[x]/\langle x^2+1\rangle\simeq\mathbb C$ and $\mathbb R[x]/\langle x^2+1\rangle$ contains a zero of $x^2+1$
151721
Uhlmann's Theorem: proof of $\text{tr}(A^{\dagger} B) = \langle m | A \otimes B |m\rangle $
102990
Prove or disprove: $S_{10} = \langle (1,3),(1,2, ... ,10) \rangle$
51276
Prove that in Bell's inequality $\langle{\Psi}|\left(\bf{\sigma}\cdot\bf{a}\right)\left(\bf{\sigma}\cdot\bf{b}\right)|{\Psi}\rangle=-\bf a \cdot\bf b$
7813
In a complex vector space, $\langle Tx,x \rangle=0 \implies T = 0$
98913
Sign in $\Delta U= -\int\vec{F}\cdot d\vec{l}$
156467
Does $\langle\Omega|\mathrm{e}^{\mathrm{i}Px}=\langle\Omega|\mathrm{e}^{\mathrm{i}0x}$? $(\langle\Omega| =$ ground state of the interacting theory)
32606
Is the operator $T((x_1,x_2,...,x_n))=(x_1,\frac{x_2}2,\frac{x_3}3,...)$ on $\ell^2$ self-adjoint and unitary
135092
How exactly can't $\delta$ depend on $x$ in the definition of uniform continuity?
27901
Proving $\sum\limits_{i=1}^k | \langle x,v_i \rangle \langle y,v_i\rangle| \leq \|x\|\cdot \|y\|$
118138
$\epsilon - \delta$ proof that $\lim_{x \to a} \sqrt x = \sqrt a$
53610
What is the difference between $Q=\Delta U+W$ and $\Delta U=Q+W$?
131251
Picking a $\delta$ for a convenient $\varepsilon$?
82659
How to write $\delta (f(x))$ in terms of $\delta (x)$?
128932
Is my expansion of the state $| x \rangle$ correct?