Picture 1: Last example on the 'Additional Examples' website for Chapter 11. (Not in the textbook)
Picture 2: p 319, Sweet Reason: A Field Guide to Modern Logic (2010 2 ed) by Henle, Garfield, Tymoczko.
Because the question reveals nothing about whether 𝓐 and 𝓑 are true and/or false, do we only assume the most general possibility: that both 𝓐 and 𝓑 are true or false? But how does this help to conclude anything about 𝓐 and 𝓑?