Confusing If Statement?

Question

I always use If statement (In C#) as (1. Alternative);

if (IsSuccessed == true)
{
   //
}

I know that there is no need to write \"== true\"

Answer 1

I claim that someone favouring the first alternative has a sketchy grasp of boolean logic. They might “understand” it intellectually, but they certainly don’t grok it; they haven’t internalized this way of thinking.

After all, does anyone every use the following idiom? “If it’s raining tomorrow is false we may go swimming” – NO, of course not. nobody says something like this, it’s ridiculous. What argument supports the claim that this idiom suddenly becomes clear when applied in a programming (as opposed to natural) language?