The plain interpretation is that only statements to be proved (or disproved) were sourced from human data, without any actual proof steps. In Go analogy, it is like being given Go board positions without next moves.
It makes a lot of sense this is needed and helpful, because winning a game of Go from the empty board is a different and easier problem than playing best moves from arbitrary Go positions. Igo Hatsuyoron mentioned in the original post is a good example; additional training was needed, because such positions never come up in actual games.
Imagine AlphaZero trained from randomly sampled Go positions, each intersection being black/white/empty with uniform probability. It would play much worse game of Go. Fortunately, how to sample “relevant” Go positions is an easy problem: you just play the game, initial N moves sampled at higher temperature for diversity.
In comparison, how to sample relevant math positions is unclear. Being good at finding proofs in arbitrary formal systems from arbitrary set of axioms is actually quite different from being good at math. Using human data sidesteps this problem.
I don’t understand what you mean here. How would merely seeing conjectures help with proving them? You arguably need to see many example proofs of example conjectures. Otherwise it would be like expecting a child, who has never seen a proof, learning to prove conjectures merely by showing it a lot of conjectures.
The plain interpretation is that only statements to be proved (or disproved) were sourced from human data, without any actual proof steps. In Go analogy, it is like being given Go board positions without next moves.
It makes a lot of sense this is needed and helpful, because winning a game of Go from the empty board is a different and easier problem than playing best moves from arbitrary Go positions. Igo Hatsuyoron mentioned in the original post is a good example; additional training was needed, because such positions never come up in actual games.
Imagine AlphaZero trained from randomly sampled Go positions, each intersection being black/white/empty with uniform probability. It would play much worse game of Go. Fortunately, how to sample “relevant” Go positions is an easy problem: you just play the game, initial N moves sampled at higher temperature for diversity.
In comparison, how to sample relevant math positions is unclear. Being good at finding proofs in arbitrary formal systems from arbitrary set of axioms is actually quite different from being good at math. Using human data sidesteps this problem.
I don’t understand what you mean here. How would merely seeing conjectures help with proving them? You arguably need to see many example proofs of example conjectures. Otherwise it would be like expecting a child, who has never seen a proof, learning to prove conjectures merely by showing it a lot of conjectures.
The feedback is from Lean, which can validate attempted formal proofs.