"As we can easily see" == doesn't seem implausible after you read the paper countless times, re-work all the derivations from scratch at least 7 times, read the

"As we can easily see" == doesn't seem implausible after you read the paper countless times, re-work all the derivations from scratch at least 7 times, read the cited docs, get out your old analysis texts to look up some theorem you'd forgotten existed, and sacrifice a chicken. I must say, there's nothing like reading a math paper to remind me that there's no shortage of people in the world that are way smarter than me.