It would be equivalent to demanding in the first case that the north and south poles of a magnet should mutually cancel themselves out or, in the second case, that dividing a magnet in the middle between the two poles should produce on one side a north half without a south pole, and on the other side a south half without a north pole.
(It; would be; equivalent to demanding in the first case that the north and south poles of a magnet should mutually cancel themselves out or, in the second case, that dividing a magnet in the middle between the two poles should produce on one side a north half without a south pole, and on the other side) (the north and south poles of a magnet; should mutually cancel out; L:in the second case) (dividing a magnet in the middle between the two poles; should produce; L:on one side)
It the north and south poles of a magnet dividing a magnet in the middle between the two poles
would be should mutually cancel out should produce
equivalent to demanding in the first case that the north and south poles of a magnet should mutually cancel themselves out or, in the second case, that dividing a magnet in the middle between the two poles should produce on one side a north half without a south pole, and on the other side
L:in the second case
L:on one side