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user37237
  • Member for 6 years, 5 months
  • Last seen more than 3 years ago
  • Germany
5 votes
2 answers
938 views

An application of the Cauchy criterion for undergraduates?

4 votes
1 answer
301 views

Tricks to draw a typical triangle?

-4 votes
7 answers
574 views

How to correct a wrong mental picture of the limit?

-4 votes
1 answer
243 views

When should the limit be introduced?

-5 votes
4 answers
542 views

How to write an individual real number? [closed]