Shabbat

MISHNAH. THE CARRYINGS OUT  OF THE SABBATH  ARE TWO WHICH ARE FOUR WITHIN, AND TWO WHICH ARE FOUR WITHOUT.  HOW SO? THE POOR MAN STANDS WITHOUT AND THE MASTER OF THE HOUSE WITHIN: [i] IF THE POOR MAN STRETCHES HIS HAND WITHIN AND PLACES [AN ARTICLE] INTO THE HAND OF THE MASTER OF THE HOUSE, OR [ii] IF HE TAKES [AN ARTICLE] FROM IT AND CARRIES IT OUT, THE POOR MAN IS LIABLE,  AND THE MASTER OF THE HOUSE IS EXEMPT.  [AGAIN] [i] IF THE MASTER OF THE HOUSE STRETCHES HIS HAND WITHOUT AND PLACES [AN OBJECT] IN THE POOR MAN'S HAND, OR [ii] TAKES [AN OBJECT] THEREFROM AND CARRIES IT IN, THE MASTER IS LIABLE, WHILE THE POOR MAN IS EXEMPT.  [iii] IF THE POOR MAN STRETCHES HIS HAND WITHIN AND THE MASTER TAKES [AN OBJECT] FROM IT, OR PLACES [AN OBJECT] THEREIN AND HE CARRIES IT OUT, BOTH ARE EXEMPT; [iv] IF THE MASTER STRETCHES HIS HAND WITHOUT AND THE POOR MAN TAKES [AN OBJECT] FROM IT, OR PLACES [AN ARTICLE] THEREIN AND HE CARRIES IT INSIDE, BOTH ARE EXEMPT. GEMARA, We learnt elsewhere:  [False] oaths are two which are four: