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AmadeusDrZaius
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14 votes
1 answer
2k views

Are multi-valued functions a rigorous concept or simply a conversational shorthand?

7 votes
7 answers
2k views

Is $\mathbb{C}$ equal to $\mathbb{R}^2$?

6 votes
1 answer
2k views

An Axiomatic Treatment of Mathematics from First Principles to the Major Subjects?

5 votes
2 answers
2k views

Works on Calculus by Newton and Leibniz (primary sources)

5 votes
2 answers
603 views

The phrases "has ... in " vs. "contains ... of" in Baby Rudin

3 votes
2 answers
625 views

Some questions about proof of Theorem 2.43 in Baby Rudin

3 votes
2 answers
111 views

Is $\lim\limits_{n \to \infty} n$ "equal" to $\mathbb{N}$?

3 votes
2 answers
118 views

Should "together with" be taken as slang for an n-tuple?

2 votes
1 answer
125 views

An Error in Landau's FOA Thm 140?

2 votes
2 answers
2k views

A rigorous statement and proof of the two-path test

2 votes
0 answers
1k views

Path-independent contour integrals and how to define them

1 vote
1 answer
94 views

Minimizing the risk of misfires and duds in a missile control system

1 vote
4 answers
2k views

Showing that a circle is "tangent" to the $x$-axis if and only if $\left|k\right| = r$.

1 vote
1 answer
155 views

Construction of Circles in Book I, Proposition 2 of The Elements

0 votes
1 answer
31 views

Formal way to add a set to an existing collection

0 votes
1 answer
37 views

Limit of an expression as $x$ tends to a particular quantity on a curve

0 votes
1 answer
85 views

An issue with the usual proof of Cantor's Theorem

0 votes
1 answer
192 views

What is the formal meaning of "determine" in Baby Rudin 2.40?