Read these examples from Jean-Francois Champollion's investigation into the Rosetta Stone, and decide whether each shows logical thinking.

"Immediately Champollion thought of the one Greek leader whose name might be identified with this particular combination of letters. It was Alexander the Great."

"He began with another cartouche from the same inscription and numbered each of the hieroglyphs in it."

"'I am going to do it,' he had said as a boy when the mathematician Fourier showed him a copy of the Rosetta Stone."