Check my proof of 0 < |r - q| < epsilon. (Real # - Rational #)
140817
Real Analysis Inequality Proof Involving Reals and Rationals $0 < |r - q| < \varepsilon$
54380
Prove if $|z| < 1$ and $ |w| < 1$, then $|1-zw^*| \neq 0$ and $| {{z-w} \over {1-zw^*}}| < 1$
158335
Why is this $0 = 1$ proof wrong?
59475
Show that $\sqrt{n+1}-\sqrt{n}\to0$
50266
In the following figure prove that: $AK||BC$
53399
Proof of the uncountability of reals using the diagonal argument—problem?
15232
Proving an inequality involving real powers
25981
Prove that $\sum_{k=0}^n a_k x^k = 0$ has at least $1$ real root if $\sum_{k=0}^n \frac{a_k}{k+1} = 0$
126074
Proof of the irrationality of $\sqrt{3}$ - logic question
56464
Proving the irrationality of $e^n$
55119
Proof that the coefficients of a polynomial are real
39514
how do I prove that $1 > 0$ in an ordered field?
107254
Real analysis question $e^{-1/x^2}$
132115
Verify my proof of the irrationality of $\sqrt{6}$.
55461
How to prove that if $a$ belongs to $\mathbb R$, such that $0\leq a \leq\epsilon$, then $a = 0$
115583
prove that $a^2(p-q)(p-r)+b^2(q-p)(q-r)+c^2(r-p)(r-q)\ge 0$
121771
Proof $f(x)\equiv 0$