Attribut:P175 starts before or with the start of

This property specifies that the temporal extent of the domain instance A of E2 Temporal Entity starts before or simultaneously with the start of the temporal extent of the range instance B of E2 Temporal Entity.

In other words, if $A=[A^{start},A^{end}]$ and $B=[B^{start},B^{end}]$, it means $A^{start}\le B^{start}$ is true.

This property is part of the set of temporal primitives P173 – P176, P182 – P185.

This property corresponds to a disjunction (logical OR) of the following Allen temporal relations (Allen, 1983): {before, meets, overlaps, starts, started-by, contains, finished-by, equals}

In a model with fuzzy borders, this property will not be transitive.

This property is irreflexive.

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