Suppose Neil Armstrong was the first person to walk on the moon during the Apollo 11 mission on July 20, 1969. He famously said, "That's one small step for man, one giant leap for mankind." Armstrong and fellow astronaut Buzz Aldrin spent a total of 21 hours on the lunar surface.
Can we infer that "Buzz Aldrin was the first person to walk on the moon."? Yes, no, or maybe?