|Title Formula=|Text Formula=|Formulation Text=At any moment of time, the elements of the scientific mosaic are compatible with each other.Test|Formulation File=The Zeroth Law Harder 2015.png|TopicObject=Mechanism of Compatibility
|Authors List=Rory Harder
|Formulated Year=2015
|Formulation File=The Zeroth Law Harder 2015.png
|Description=Harder's reformulation of the Zeroth Law states that “at any moment of time, the elements of the mosaic are compatible with each other”. ''Compatibility'' is a broader concept than strict logical ''consistency'', and is determined by the compatibility criteria of each mosaic.