"Comp. Rules: 208.2. Some creature cards have power and/or toughness represented by a * instead of a number. The object has a characteristic-defining ability that sets its power and/or toughness according to some stated condition. This ability functions everywhere, even outside the game. If the ability needs to use a number that can't be determined, use 0 instead of that number."
"A Local Judge: If you remove all abilities and it has a characteristic defining ability for power and toughness, that ability will be removed before it has a chance to be applied and the creature's power and toughness will be undefinied-- which we don't allow for creatures on the battlefield."
"International Magic Judges Wiki: With Yixlid Jailer on the battlefield, a Tarmogoyf in the graveyard will be 0/1."
"Ken Nagle: Losing all abilities is a notoriously fuzzy part of the rules to be doing it repeatedly on an uncommon. Did you know ... making a huge Tarmogoyf lose all abilities results in ... still a huge Tarmogoyf? That's because characteristic-defining abilities aren't actually granting abilities!"
What exactly is correct? What is Tarmogoyf's power and toughness if it loses all abilities? Can you provide rules which show exactly what happens? I'm assuming that its power and toughness are not indeterminate.