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Revision history for BP922

Displaying 1-9 of 9 results found. page 1
     Edits shown per page: 25.
BP922 on 2020-08-18 12:22:22 by Leo Crabbe                approved
-DATA

 

EX7706
 

REMOVE

 

EX7698
 

BP922 on 2020-08-17 08:33:44 by Leo Crabbe                approved
NAME

One row is rearranged to make the other by swapping an odd number of object pairs vs. one row is rearranged to make the other by swapping an even number of object pairs.

COMMENTS

The mathematical terms for these operations are even and odd permutations.

EXAMPLE

AUTHOR

Leo Crabbe

+DATA

 

EX7692
   

EX7693
   

EX7694
   

EX7695
   

EX7696
   

EX7697
 

-DATA

 

EX7698
   

EX7699
   

EX7700
   

EX7701
   

EX7702
   

EX7703
 

BP922 on 2020-07-25 02:22:05 by Aaron David Fairbanks                approved
NAME

COMMENTS

REFERENCE

CROSSREFS

EXAMPLE

AUTHOR

REMOVE

  

BP922 on 2020-07-22 15:21:17 by Aaron David Fairbanks                approved
+DATA

  

BP922 on 2020-07-22 15:02:32 by Aaron David Fairbanks                approved
NAME

BPs with "world" some connected drawing made out of line segments vs. other Bongard Problems.

COMMENTS

EXAMPLE

AUTHOR

Aaron David Fairbanks


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