“共享卫星”来了！“亦庄全图通·贺龙星”正式命名
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| 18 hours ago | comment | added | keshlam | In other words, a definition can either be a primitive axiom, or can be a name assigned to the result of a prior definition which hopefully ultimately rests on primitive axioms. (Formal grammars make this very explicit.) | |
| 18 hours ago | history | answered | David Gudeman | CC BY-SA 4.0 |