Neither he nor Lorentz, however, ascribed equal validity to the times kept by the different sets of clocks.

This led some to posit that differing systems have equal validity, with no standard for adjudicating among conflicting beliefs.

They are processes of equal constitutional validity.

Erm, I mean I separate them out, incidently because they have equal validity.

(d) final decisions having equal validity for all normally constituted minds.

You could, with equal validity attribute the decline in violent crime to the exceptionally mild temperatures over the last 10 years.

Each of the probabilities - until someone comes along to 'fix' it - has equal validity, equal reality.

All observers have equal validity, there being no absolute frame of reference.

It also underlined for the first time the equal validity and aspirations of traditions in Northern Ireland.

Most arguments for the existence of God are not specific to any one religion and could be applied to many religions with near equal validity.