show/hide this revision's text 2 iosmorphic->isomorphic

The set of 7-tuples of binary trees is isomorphic to the set of binary trees. For the correct definition of "iosmorphic" isomorphic" this is a surprising non-trivial result.

show/hide this revision's text 1 [made Community Wiki]

The set of 7-tuples of binary trees is isomorphic to the set of binary trees. For the correct definition of "iosmorphic" this is a surprising non-trivial result.