Final answer:
People may not acknowledge that 'all' implies 'some' to stress absolutes or to avoid exceptions in a discussion. This is influenced by rhetorical language usage contrary to strict logical definitions of quantifiers. It can lead to overgeneralizations and stereotypes in communication.
Step-by-step explanation:
The question explores why all does not necessarily imply some in language usage, especially in the context of nuanced discussions and arguments. One key reason for this might lie in the strict logical meaning of quantifiers - in logic, “all” indeed implies “some”, but conversational and rhetorical uses of language often strain against logical structure, emphasizing absolutes to make a point or express an opinion. Thus, while “all” logically includes “some”, people might speak as if it doesn't to underline a certain belief or perception, or to avoid acknowledging exceptions that undermine their argument.
For instance, not all discussions accurately convey belief or knowledge. When it comes to expressions in literature or everyday communication, the phrases used may not reflect the full extent of variations in experience or reality. This can be clearly seen in situations where collective groups are labeled with characteristics that do not apply to every individual within them, leading to overgeneralizations or stereotypes.