"Scope note:\nThis property describes the maximum period of time within which an E52 Time-Span falls.\n\nSince Time-Spans may not have precisely known temporal extents, the CRM supports statements about the minimum and maximum temporal extents of Time-Spans. This property allows a Time-Span\u2019s maximum temporal extent (i.e. its outer boundary) to be assigned an E61 Time Primitive value. Time Primitives are treated by the CRM as application or system specific date intervals, and are not further analysed.\n\nExamples:\n- the time-span of the development of the CIDOC CRM (E52) at some time within 1992-infinity (E61)\n\nIn First Order Logic:\nP82 (x,y) \u2283 E52(x)\nP82 (x,y) \u2283 E61(y)"@en . . "P82 at some time within"@en . . "P82"^^ .