Final answer:
The Thirteenth Amendment was designed to permanently abolish slavery, legally solidifying what the Emancipation Proclamation set out to do on a temporary basis during wartime. Jolly's view might change as post-war politics could alter the perception of the necessity for the amendment.
Step-by-step explanation:
The purpose of the Thirteenth Amendment was to ensure the permanent abolition of slavery across the United States, going further than the temporary measures during the Civil War, like the Emancipation Proclamation. With President Lincoln's determination, largely influenced by the valor of black soldiers, the amendment was crafted to legally end slavery.
The amendment differed from the Emancipation Proclamation in that it was a constitutional change, making it a permanent, enforceable law against slavery, unlike the proclamation which was a temporary wartime measure with limited scope. Jolly's view on the Thirteenth Amendment might change if the war ended because, without the urgency of war, the political dynamic and the perception of black soldiers' sacrifices could shift, potentially influencing the necessity and sentiment towards permanent abolition.