The Law of Compatibility (Fraser-Sarwar-2018)

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An attempt to answer the question of Mechanism of Compatibility which states "If a pair of elements satisfies the compatibility criteria employed at the time, it becomes compatible within the mosaic; if it does not, it is deemed incompatible; and if assessment is inconclusive, the pair can become compatible, incompatible, or its status may be unknown."

The Law of Compatibility (Fraser-Sarwar-2018).png

The Law of Compatibility was formulated by Patrick Fraser and Ameer Sarwar in 2018.1


Acceptance Record

This theory has never been accepted.

Suggestions To Accept

Here are all the modifications where the acceptance of this theory has been suggested:
ModificationCommunityDate SuggestedSummaryVerdictVerdict RationaleDate Assessed
Sciento-2018-0018Scientonomy28 January 2018Accept the new dynamic law of compatibility which specifies how exactly two elements become to be considered compatible or incompatible within a mosaic.Open

Question Answered

The Law of Compatibility (Fraser-Sarwar-2018) is an attempt to answer the following question: Under what conditions can two elements coexist in the same mosaic?

See Mechanism of Compatibility for more details.


The law of compatibility links the compatibility criteria with various assessment outcomes. If compatibility is defined as the ability of a pair of elements to co-exist in the same mosaic, then the assessment for compatibility is essentially the process by which the epistemic agent decides whether any given pair of elements (i.e. theories, questions, methods) can be simultaneously part of their mosaic. Such an assessment can yield three possible outcomes - satisfied, not satisfied, and inconclusive.1p. 73 Accordingly, the law of compatibility states that if a pair of elements does satisfy the compatibility criteria of the time, then it is deemed as compatible. If, however, an element is taken to be incompatible with the other one, then the pair is deemed as incompatible. Finally, the assessment of compatibility may be inconclusive. In this case, the pair may be deemed compatible, incompatible, or its status may remain unknown. The diagram below summarizes the relation between assessment outcomes and their effects:

The Law of Compatibility Assessment Outcomes (Fraser-Sarwar-2018).png


  1. a b  Fraser, Patrick and Sarwar, Ameer. (2018) A Compatibility Law and the Classification of Theory Change. Scientonomy 2, 67-82. Retrieved from