According to Ayer, "Observation O increases the probability of proposition P" means
According to Ayer, "Observation O increases the probability of proposition P" means
This would be an emotivist view of probability.
According to Ayer, "Observation O increases the probability of proposition P" means
This is too strong.
According to Ayer, "Observation O increases the probability of proposition P" means
Ayer adds that the rationality of a belief is defined by referring, not to some absolute standard, but to accepted scientific practice.
According to Ayer, "Observation O increases the probability of proposition P" means
This is Ayer's rough initial definition. He notes that this definition is oversimplified -- since we aren't always rational.