An explicit, but polite, way to say that you’re skipping some steps: “I’m skipping some steps here.”
Saying that something “is obvious” can come across as insulting the competence of anyone in the audience who doesn’t take it as obvious.
An explicit, but polite, way to say that you’re skipping some steps: “I’m skipping some steps here.”
Saying that something “is obvious” can come across as insulting the competence of anyone in the audience who doesn’t take it as obvious.