HelloNot everything is pretty much "spelled out" in scripture, but I cannot see where Paul did not preach baptism and all doctrine he himself learned.
You have chosen some good verses CNKW3.
I don't understand this attitude going around lately with some trying to separate Paul's gospel from the others.
The scripture you noted is quite clear.
Paul received revelations from Christ and these revelations were not found in scripture; they are further revelations. Paul's gospel by revelation is to be separated as the one to be believed for salvation.
Paul did not preach baptism for the remission of sins.