Mineness (n.) is mortality: only the I dies, and only the mortal is an I.
Definition.com
Definition.com
Mineness (n.) is why Dasein must always be addressed with a personal pronoun: 'I am', 'you are'.
Definition.com
Mineness (n.) cannot be abstracted away: whoever crosses it out has lost the very theme he is talking about.
Definition.com
Mineness (n.) is Dasein’s key feature; the act that Dasein is to be constantly occupied with its own being, and with how things are going for that being.
Definition.com
Mineness (n.) is the condition that makes both authenticity and inauthenticity possible: only what is mine can be owned or disowned.