"I believe you.  I think we have no need to play out our moves, then.  It would be purposeless, if we cannot learn our own true answers, and to show each other our answers afterwards would be an offense against the nature and meaning of this game."

"I will not ask you to spend a truthspell on verifying all this to me.  Just, sometime in the future, when you are truthspelling yourself in any case - would you also happen to say to me that you told me no lies the day we first played the Cooperation-Defection game?"

"I believe you.  I think we have no need to play out our moves, then.  It would be purposeless, if we cannot learn our own true answers, and to show each other our answers afterwards would be an offense against the nature and meaning of this game."

"I will not ask you to spend a truthspell on verifying all this to me.  Just, sometime in the future, when you are truthspelling yourself in any case - would you also happen to say to me that you told me no lies that time we first played the Cooperation-Defection game?"

"I believe you.  I think we have no need to play out our moves, then.  It would be purposeless, if we cannot learn our own true answers, and to show each other our answers afterwards would be an offense against the nature and meaning of this game."

"I will not ask you to spend a truthspell on proving all this to me.  Just, sometime in the future, when you are truthspelling yourself in any case - would you also happen to say to me that you told me no lies that time we first played the Cooperation-Defection game?"

"I believe you.  I think we have no need to play out our moves, then.  It would be purposeless, if we cannot learn our own true answers, and to show each other our answers afterwards would be an offense against the nature and meaning of this game."

"I will not ask you to spend a truthspell on proving all this to me.  Just, sometime in the future, when you are truthspelling yourself in any case - would you also say to me that you told me no lies that time we first played the Cooperation-Defection game?"

"I believe you.  I think we have no need to play out our moves, then.  It would be purposeless, if we cannot learn our own true answers, and to show each other our answers afterwards would be an offense against the nature and meaning of this game."

"I will not ask you to spend a truthspell on proving all this to me.  Just, sometime in the future, when you are truthspelling yourself in any case - would you also say to me that you told me no lies this time?"