17898 | Prior's 'tonk' is inconsistent, since it allows the non-conservative inference A |- B |

11021 | Prior rejected accounts of logical connectives by inference pattern, with 'tonk' his absurd example |

13836 | Maybe introducing or defining logical connectives by rules of inference leads to absurdity |

17896 | We need to know the meaning of 'and', prior to its role in reasoning |

15201 | That Queen Anne is dead is a 'general fact', not a fact about Queen Anne |