Studies of Euler diagrams/blightless

dummy

One could say, that only blightless functions are interesting, and deserve to be drawn as Euler diagrams.
For the whole geometric analysis, only those with a single bundle are interesting.

Eventually these pages should show an example for each BEC with arity up to 4.

3-ary

Of the 22 BECs with arity up to 3 there are 16 whose actual arity is 3.
5 of them are blighted, and 11 are blightless. 5 of them have multiple bundles, and 6 have only one.

multi-bundle

6, 11, 15, 18, 19

bundles

7, 12, 13, 16, 20, 21

4-ary

Of the 402 BECs with arity up to 4 there are 380 whose actual arity is 4.
37 of them are blighted, and 343 are blightless. 51 of them have multiple bundles, and 292 have only one.

multi-bundle

34, 40, 77, 108, 117, 127, 214, 296, 297, 333, 347

bundles

61, 84, 109, 116, 146, 157, 203, 220, 270, 271, 272, 281, 282, 306, 312, 317, 321, 346, 349, 353 374, 383, 384