Suppose Mount Everest, known in Nepali as Sagarmatha and in Tibetan as Chomolungma, is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China-Nepal border runs across its summit point. The current official height of Mount Everest is 8,848.86 meters, recognized by both China and Nepal.
Can we infer that "Mount Everest is the tallest mountain on Earth."? Yes, no, or maybe?