Maybe you can, in logical terms. In historical terms, however, you can't. No need to worry, though. Every historian worth his salt* or his methods course** knows that you can't make conclusions based on silence, i.e. 'nothing speaks against it' does not prove anything in a historical context. That renders Irving's speculative 1977 thesis that Hitler didn't know about the Endlösung underway moot, unless he can provide evidence for it.JonS wrote:Can't prove a negative? Sure you can.
...
In other words, the burden of proof cuts the other way.
* Which might excuse Irving.
** Which might excuse several more contemporary historians.