Full Idea
The idea that negation is, or can be, a cancellation device raises an interesting question. What does one do to wipe the slate clean after an improper assertion? Not-A is too strong; it reverses our stand on A rather than nullifying it.
Gist of Idea
Not-A is too strong to just erase an improper assertion, because it actually reverses A
Source
Stephen Yablo (Aboutness [2014], 09.8)
Book Reference
Yablo,Stephen: 'Aboutness' [Princeton 2014], p.162
A Reaction
[He is discussing a remark of Strawson 1952] It seems that 'not' has two meanings or uses: a weak use of 'nullifying' an assertion, and a strong use of 'reversing' an assertion. One could do both: 'that's not right; in fact, it's just the opposite'.