Art conservators examining fifteenth-century panel paintings established the following facts:
• Every panel painting executed with egg tempera contains proteinaceous binding media.
• Any panel painting containing proteinaceous binding media that has been subjected to prolonged humidity exhibits micro-cracking across its varnish layer.
• No panel painting in the Sforza collection that exhibits micro-cracking across its varnish layer was executed with oil-based glazes.
Statement: If a panel painting in the Sforza collection was executed with egg tempera and has been subjected to prolonged humidity, it was not executed with oil-based glazes.
Answer: Answer
Answer
True. The conditional premises form an unbroken deductive chain guaranteeing that any painting meeting the stated antecedent conditions cannot have been executed with oil-based glazes.
Evaluating the statement as True is correct because a direct conditional chain leads from the sufficient conditions (Sforza collection, egg tempera, prolonged humidity) through the intermediate physical markers (proteinaceous binder, micro-cracking) to the necessary exclusion of oil-based glazes.
Step-by-Step Solution
Key Concept
Multi-premise conditional chaining in formal deductive inference
Estimated Time:1m 15s