modal scope fallacy
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B.F. Griffith
- February 17, 2017
- misconditionalization, fallacy of neccessity
The de dicto expression □ (Bx → ⌐ Mx) is a tautology, while the de re expression Bx → □⌐ Mx is false.
a❩ Bachelors are necessarily unmarried.
b❩ John is a bachelor.
Therefore, c❩ John cannot marry.
