existence starts during or afterGo to external page http://purl.obolibrary.org/obo/RO_0002496
The relations here were created based on work originally by Fabian Neuhaus and David Osumi-Sutherland. The work has not yet been vetted and errors in definitions may have occurred during transcription.
x existence starts during or after y if and only if the time point at which x starts is after or equivalent to the time point at which y starts. Formally: x existence starts during or after y iff α (x) >= α (y).