you have simply accepted your opponents’ definitions and premises either knowingly or unknowingly.
Nonsensical and unsupported. Ayn Rand is not my opponent!
All essentialists to date have gotten it wrong
,
I think Rand got it right. And if Mccaskey is right Aristotle did much better than most think.
which is why the opponents keep attacking them with justification and success.
Hmm… Who has attacked Rands theory with success?
Knowledge is not based on definitions
Alone ,no, but objective definitions are part of the conceptual process.
it is based on perceptions which are not propositions
Who is denying this foundation?Who has made this equivocation?I certainly have not ! All knowledge has its base in perception. But without measurement omission and objective definitions and a name for the concept the process is not complete.
Demonstration must be ultimately perceptual not words on a page.
Uhhh yeah so? Who is debating this? Looks like you are affirming the consequent somewhere and fighting strawmen.
The middle stage between wordless perception and forming and manipulating sentences is concept formation.
Well said!
Induction is based on generalizing
So is the process of measurement omission because both are inductive. I suggest you read ITOE the section on “Measurement-Omission and Generality”
Excerpt:
Prof. D: But if the essence of generality was the omission of the specific measurement of the individuals, then by reintroducing the specific measurement of individuals the generality would be lost.
AR: Except for one very important element that you omit here and that can’t be omitted: the Conceptual Common Denominator. Even if all tires, [not just one subgroup], were absolutely alike in every measurement (which is not really possible, but assuming that for the sake of argument), you couldn’t form the concept “tire” unless there was something that you could isolate that grouping from. Let us suppose it is the concept of the wheel or some other part of an automobile. Unless you differentiate this particular grouping from another one with which it has something in common but differs in measurement, you couldn’t have a concept. Because you forget there are two aspects of the process—one is integration, but the first one is separation [i.e., differentiation]. <ioe2_144>
Prof. D: But does the separation give you the generality , or is it the type of integration that operates that gives you the generality?
AR: Both. One is not possible without the other. You could not integrate a given set of concretes unless you could first differentiate it from other concretes. You have to isolate it first, and then you can integrate it into a particular grouping and form a concept. But if you can’t isolate it, you can’t abstract.
Prof. D: Then you are maintaining that the generality remains in the case of the subcategory where measurements are specified; the generality isn’t lost because it was originally obtained in the concept of “tire” by leaving out measurements, and bringing back in the measurements now doesn’t affect the generality of the notion of tires.
AR: Not only was the generality present originally, but you are using and introducing it when you say these are 710-15 tires. The generality is present in the classification of these objects as tires. By identifying them in that form you are introducing the issue of measurement-omission by classifying them still as tires. If you didn’t do that, then you couldn’t call them tires. Then they would be sui generis objects; but they are not, they are tires. Why do you classify them as that? Because their submeasurements, which you are now specifying, are different from the measurements of others which you call “tires”; yet you subsume them in the same concept, in the same category. So you are using measurement-omission even in the classification
and so is propositional and necessarily is after concepts in the hierarchy of methods of thought…“Forming a new integration” is similarity uniting induction, deduction and concept formation, but what unites induction and concept formation against deduction is non-propositional justification by means of perception from first level concepts and first level generalizations. There are no first level syllogisms. Concept formation and induction do have something in common but concept formation is prior because generalizing is propositional..
Here’s where your wrong and disagree with myself and Rand.