Full Idea
I suggest that there is a 'loose' sense of identity that is consistent with saying 'A has a property that B does not have', or 'some things are true of A but not of B'.
Gist of Idea
There is 'loose' identity between things if their properties, or truths about them, might differ
Source
Roderick Chisholm (Person and Object [1976], 3.2)
Book Reference
Chisholm,Roderick: 'Person and Object' [Open Court 1976], p.92
A Reaction
He is trying to explicate Bishop Butler's famous distinction between 'strict and philosophical' and 'loose and popular' senses. We might want to claim that the genuine identity relation is the 'loose' one (pace the logicians and mathematicians).
Related Idea