If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
ద్విగుణ ప్రమేయానికి విలోమాన్ని కనుగొనుట
Translated from original video
Title -Relating invertibility to being onto and one-to-one