Constructivist Zone
A construction-zone sign for constructivist mathematicians, who reject the law of the excluded middle: proceed with caution.
Transcript
[Orange construction-zone sign] "WARNING · CONSTRUCTIVIST ZONE · Exclude Middle with Caution"
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2021-06-10-constructivist-zone/ (CC BY-NC 4.0)