What are the halachik definitions of bittul torah? I.e. some say that studying secular sciences qualifies as bittul torah while others say that it doesn't. How are they defining the halachik ...
I was recently referred to the Even HaEzel on the Rambam in the 3rd chapter of Hilchos Melachim. Reb Isser Zalman Meltzer (the author) writes there that there is no sin of Bittul Torah for a regular ...