11. Isaac buys a piece of land as an investment, paying $20,000. Three years later he trades the land to Isadore for a piece of land worth $26,000. Isaac holds the new land as an investment. Does Isaac realize a gain on the swap of the |land, and if so how much gain is realized? 12. Does Isaac recognize a gain on the swap of the land and if so how much is it? 13. What is Isaac's adjusted basis in the new property he receives? What is Isaac's holding period in the new land he receives?