### Ideas from 'Individuals without Sortals' by M.R. Ayers [1974], by Theme Structure

#### [found in 'Canadian Journal of Philosophy' (ed/tr -) [- ,]].

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###### 6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / d. Counting via concepts
 17518 Counting 'coin in this box' may have coin as the unit, with 'in this box' merely as the scope
 17516 If counting needs a sortal, what of things which fall under two sortals?
###### 7. Existence / B. Change in Existence / 4. Events / a. Nature of events
 17520 Events do not have natural boundaries, and we have to set them
###### 9. Objects / A. Existence of Objects / 5. Individuation / a. Individuation
 17519 To express borderline cases of objects, you need the concept of an 'object'
###### 9. Objects / A. Existence of Objects / 5. Individuation / e. Individuation by kind
 17510 Speakers need the very general category of a thing, if they are to think about it
 17511 Recognising continuity is separate from sortals, and must precede their use
 17522 We use sortals to classify physical objects by the nature and origin of their unity
 17515 Seeing caterpillar and moth as the same needs continuity, not identity of sortal concepts
###### 9. Objects / B. Unity of Objects / 1. Unifying an Object / a. Intrinsic unification
 17517 Could the same matter have more than one form or principle of unity?
###### 9. Objects / B. Unity of Objects / 3. Unity Problems / c. Statue and clay
 17513 If there are two objects, then 'that marble, man-shaped object' is ambiguous
###### 9. Objects / D. Essence of Objects / 5. Essence as Kind
 17523 Sortals basically apply to individuals
###### 9. Objects / E. Objects over Time / 5. Temporal Parts
 17521 You can't have the concept of a 'stage' if you lack the concept of an object
 17514 Temporal 'parts' cannot be separated or rearranged
###### 9. Objects / F. Identity among Objects / 1. Concept of Identity
 17509 Some say a 'covering concept' completes identity; others place the concept in the reference
###### 9. Objects / F. Identity among Objects / 3. Relative Identity
 17512 If diachronic identites need covering concepts, why not synchronic identities too?