Studies of Euler diagrams/gapspots

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A gapspot is a spot that is false, but needed in an Euler diagram for geometric consistency. They are usually shown in light gray.

gap variants[edit | edit source]

Changing some spots in a gapless function from true to false creates a gap variant. This often requires a redrawing of the Euler diagram.


hard and soft[edit | edit source]

hard (can not be removed)
soft (removed on the right)