Kvant

Rough automatic draft, low quality: expect mistakes and awkward wording. It will be replaced by a better translation. Original →

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To whom
What
It’s clear

The outstanding Russian geometer and teacher A.K. Vlasov, having presented the problem of the intersection of two lines defined by his equation at a regular lecture on analytical geometry, added:

— Two students, having become familiar with this issue for the first time, were talking among themselves.

One said: “Now I understand why a system of two first-degree equations with two unknowns generally has one solution. This is because the two lines intersect at one point.”

Another replied: “That’s when I finally understood why two lines intersect at the same point.”

Another replied: “That’s when I finally understood why two straight lines intersect at one point.”

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