In the paintings by seventeenth-century Dutch artist Vermeer, we find several recurrent items: a satin jacket, a certain Turkish carpet, and wooden chairs with lion's-head finials. █████ ███████████ ███████ █████ ████ ██ ██████ █ ██████ ██ ██████ ███ ██ ████ ████ ████ ██ ███ █████ ███████ ████ ████ ██████████ █████ █████ ██ █████ █████████ █████ ███████ ███ ███████ ██████ ████ █ █████ ██████ ██ ████████ ████████ ██ ███ ███████ ███ ███ ████ ██ █████ ████ ███ █████████ █████ ████ █████
The author concludes that the reason Vermeer used recurring items in his paintings is not because he lacked props. This is based on the fact that many of the recurring items in his paintings were expensive.
All we know from the premise is that many recurring items in Vermeer’s paintings are expensive. But this doesn’t prove anything about the reason Vermeer used the recurring items as props. How can the author reach the conclusion that the reason is not because he lacked props? We want to get from the fact many props were expensive to the conclusion that the reason Vermeer used recurring items is not because he lacked props:
If he used many expensive props → lacking props is not the reason he used recurring props
OR
If lacking props IS the reason he used recurring props → he would NOT have used many expensive props
The conclusion follows logically if █████ ███ ██ ███ █████████ ██ ████████
Vermeer often borrowed ███ █████████ █████ ██ ███████████ ██ ███ ██████████
The props that █████ ██ █████████ █████████ ████ ██████ █████████ ██ ████
The satin jacket ███ ██████ ██████ ████ █████ ██ ███ █████████ ████ █████ ██ █████████ ███████
The several recurrent █████ ████ ████████ ██ █████████ █████████ ███ ███████ ███████████ ██████████ ███ ████
If a dearth ██ █████ █████████ ███ ███ █████████ ███████ ██ █████████ ██████████ ██ █████ ███ ███ █████████ █████ ██ ███ ██ █████