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user16319
  • Member for 4 years, 5 months
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6 votes
1 answer
361 views

Show that the Yoneda embedding preserves exponential objects

3 votes
1 answer
197 views

Exercise 4.5.35 of David Marker's Model theory

3 votes
1 answer
127 views

Meaning of the $I/mI$ in a given ring A [closed]

3 votes
2 answers
117 views

Is there a canonical way to go back from $\hat{\mathbb{C}}$ (presheaves) to $\mathbb{C}$

3 votes
2 answers
185 views

Does Surjective-infinite implies Dedekind infinite

3 votes
1 answer
53 views

Within the second Fraenkel model, show that any function from $A\rightarrow A$ has the following property

2 votes
1 answer
28 views

Show the following arrows are transposes of each other

2 votes
1 answer
113 views

Show the following properties of $A$ as an $R$-algebra

2 votes
0 answers
249 views

Finding a primary decomposition of an ideal in $\Bbb Z[X]$

1 vote
1 answer
31 views

How did the following approximation arise in Bayati's paper on random graph generation

1 vote
0 answers
44 views

Show that $A$ is a flat $R$-module

1 vote
1 answer
69 views

Which of the following facts on cardinals is provable in ZF

1 vote
1 answer
298 views

Show that $\hat{\mathbb{C}}$, category of presheaves for $\mathbb{C}$, is cartesian closed

1 vote
2 answers
501 views

Show that surrounding a $CNOT$ with Hadamard gates switches the role of the control-bit and target-bit of $CNOT$

1 vote
1 answer
92 views

Follow up on the existence of prime model;

1 vote
1 answer
77 views

Possible Characterization of localization of $\mathbb{Q}[x, y]$

1 vote
0 answers
64 views

Given that $B$ is a flat $A$-algebra, why is the following an exact sequence of $B$-modules

1 vote
0 answers
165 views

Atiyah-Macdonald, hint for Exercise 9.2

1 vote
1 answer
74 views

Using Yoneda's lemma to "guess" the definition of exponential object in $SET$

0 votes
0 answers
62 views

confused over the meaning of a functor having both adjoints

0 votes
2 answers
93 views

In the basic Fraenkel (permutation) model, any functions from $\omega$ to $P(A)$ has finite range.

0 votes
2 answers
308 views

Understanding the following definition of torsion free modules

0 votes
1 answer
118 views

Show that the following localization is Noetherian