While I want to believe this is true, I think the above response was more a lack of Gopher's ability to analyze mathematical equations properly than an attempt to display a sense of humour. Many NLP approaches work by creating word embeddings, which don't always help the model to understand "first-order logic" language mixed with spoken language.
Though who knows, maybe it does have a sense of humour.
Though who knows, maybe it does have a sense of humour.