6 ideas
16186 | The Barcan Formulas express how to combine modal operators with classical quantifiers [Simchen] |
16187 | The Barcan Formulas are orthodox, but clash with the attractive Actualist view [Simchen] |
16190 | BF implies that if W possibly had a child, then something is possibly W's child [Simchen] |
10855 | Actual infinities are not allowed in mathematics - only limits which may increase without bound [Gauss] |
16188 | Serious Actualism says there are no facts at all about something which doesn't exist [Simchen] |
1558 | Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus] |