Schröder-Bernstein theorem
[ shroh-der-burn-steen, -stahyn, shrey- ]
/ ˈʃroʊ dərˈbɜrn stin, -staɪn, ˈʃreɪ- /
noun Mathematics.
the theorem of set theory that if two sets are so related that each can be placed in one-to-one correspondence with a subset of the other, then the sets are equivalent.
Origin of Schröder-Bernstein theorem
after Ernst
Schröder (1841–1902), German logician and mathematician;
Bernstein is unidentified