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Studies of Euler diagrams/vidita

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dummy

This 4-ary Boolean function has 10 of 16 true spots. It is a gap variant of medusa (see here).

3D Euler diagram
2D Euler diagram with duplicates of cell 6



filtrates

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Each of the 6 pairs is a 2-split (with all 4 quadrants). Only one of the 4 triples is a 3-split (with all 8 octants).

4 sets

A

B

C

D

cells

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middle
14      _BCD
6      _BC_
7      ABC_
0      ____