This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Syntax for a 2-element virtual hypotheses collection. (Contributed by Alan Sare, 23-Apr-2015) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | wvhc2 | wff ( 𝜑 , 𝜓 ) |