Moses' Proclamation in the Camp and the Sabbath Law of Carrying

"And Moses commanded, and they sent a proclamation through the camp." Where was Moses sitting? In the camp of the Levites. And the camp of the Levites was a public domain, for everyone was found near Moses our teacher. And he said to them: Do not carry out from a private domain to a public domain. And from where do we know that this stood on the Sabbath? Perhaps it stood on a weekday, and because the work was finished, as it is written "And the work was sufficient." We derive "proclamation" from "proclamation" of the Day of Atonement: it is written here "and they sent a proclamation through the camp," and it is written there (Leviticus 25:9) "and you shall make a proclamation with the shofar blast" - just as there it was on a forbidden day, so here on a forbidden day. We have found carrying out; from where do we know carrying in? It is a logical inference: since it is from one domain to another, what difference is there to me whether one carries out or carries in? However, carrying out is a primary category (av) and carrying in a derivative (toldah). The practical difference is that if one performs two primary categories together, or two derivatives together, he is liable twice; for a primary category and its own derivative he is liable only once. And according to Rabbi Eliezer, who holds one liable for a derivative alongside its primary category: whichever was significant in the Tabernacle is called the primary; or alternatively, whichever is written explicitly is called the primary. And all the matter of four cubits in a public domain is a tradition handed down. [Note: the attribution "Rabbi Eliezer" reads "Rabbi Eliezer" in the text where the standard reading is Rabbi Eliezer.]