It’s the weekend; why not spread a bit of mathematics humor, using the basic element of mathematics humor, the Venn diagram?
Interestingly, Venn diagrams are also an overlap between Mathematics Humor and Philosophy Humor.
Where Rap Music and Discrete Mathematics meet.
nebusresearch 
I spent three hours drawing Venn diagrams on the board today.
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I probably should’ve spent more time drawing Venn diagrams while I was trying to get my students to follow probability problems. I’m still learning how many examples the lower-level and non-major students need.
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But in Discrete, shouldn’t it be integers??? Or at least Rationals??? :)
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You’d think. The Language Log group is worried about it too, though one commenter pointed out that apparently rappers don’t say “for reals” much either.
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