syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//!"}]}
source_snippet: //! distinct elements at the same height in a Hasse diagram (e.g. `{X}` and `{Y}`) are
context_before: //! diagram] for the powerset of a set with two elements (`X` and `Y`) is shown below. Note that
context_after: //! *incomparable*, not equal.