See @right-finite, which distinguishes between finite right side and infinite right side.

Bongard Problems such that there is a way of making an infinite list of all relevant possible right-sorted examples vs. Bongard Problems where there is no such way of listing all right-sorted examples.

Left-sorted Problems have the keyword "right-listable" on the OEBP.

BPs are sorted based on how BP563 (@left-listable) would sort them were they flipped; see that page for a description.

See BP516 (keyword @right-finite), which distinguishes between finite right side and infinite right side.

Bongard Problems such that there is an intuitive way of making an infinite list of all relevant possible right-sorted examples vs. Bongard Problems where there is no such way of listing all right-sorted examples.

Left-sorted Problems have the keyword "right-listable" on the OEBP.

BPs are sorted based on how BP563 would sort them were they flipped; see that page for a description.

Bongard Problems with a countably infinite number of relevant possible right examples vs. Bongard Problems with an uncountably infinite number of relevant possible right examples

See BP516 (keyword "right-finite"), which distinguishes between finite right side and infinite right side.

BPs are sorted based on how BP563 would sort them were they flipped; see that page for a description.

See BP563.

See BP940.