WASHINGTON — Maybe President Trump has not been impeached after all, or at least not yet.

Impeachment happens, according to Noah Feldman, a Harvard law professor, only when the House transmits the articles of impeachment to the Senate.

So “technically speaking,” he said, “the president still hasn’t been impeached.”

That idea has left much of the legal academy unconvinced, including Laurence H. Tribe, one of Professor Feldman’s colleagues at Harvard. “The argument is textually bizarre, historically inaccurate, structurally misguided and functionally misleading,” Professor Tribe said.

Professor Feldman was one of three constitutional scholars to testify in favor of impeachment before the House Judiciary Committee this month. Jonathan Turley, a law professor at George Washington University and the sole scholar invited by Republicans to testify against impeachment at that hearing, also disagreed with Professor Feldman.

Mr. Trump was impeached on Wednesday, Professor Turley said. “Article I, Section 2 says that the House ‘shall have the sole power of impeachment.’ It says nothing about a requirement of referral to complete that act.”