I 20
Memory: has no traces of earlier sensations, but is conceptually.
V 176
Memory/Quine: is a disposition, to pronounce a name in the presence of the relevant - the observation sentence has nothing to do with the past - to forget a name is to forget a piece of language.
V 177
Past/Observation/Quine: there are also reports of previous observations where the term was learned by definition rather than by conditioning. Since you can replace a defined term with its definiendum, this amounts to a composite observation term. Example "I have seen a black rabbit":
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Observation/Quine.
Learning situation: one for black, one for rabbits, as well as for attributive composition.
Imagination/Memory/Quine: in the language of imaginary images, we can say that they are created even if the corresponding object is not present.
But now we have to go further and assume even more abilities: the child has to distinguish between two types of images:
a) Fantasies and
b) Memories.
V 178
QuineVsHume: has made little convincing reference to liveliness as a distinguishing feature.
Def Memory/Hume: is a weakened sensation
Def Fantasy/Hume: is a weakened memory.
Def Imagination/QuineVsHume: is an event in the nervous system that leads to a state of readiness for a corresponding irritation. This indicative nerve process is perceived by the subject, i.e. it must be able to react specifically to it, in two different ways:
a) Summary of elements that have been learned so far e.g. "black" and "rabbit".
b) Reinforced by acquaintance: i.e. real earlier encounter with a black rabbit. Basis for the affirmative.
V 179
Observation sentence/complete thought/reference/Quine: refers to the object and the calendar clock and, if applicable, to a location. Complex observation term.
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Observation Sentence/Quine.
Protocol sentence: timeless record (of eternal duration) if location and times are complete.