The compiler hang was because { D: 3 D: 2 } was unequal to { D: 2 D: 3
}, so using a set should fix that.
						
					
				
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|---|---|---|
| .. | ||
| clearing | ||
| finalize | ||
| global | ||
| height | ||
| local | ||
| padding | ||
| vacant | ||
| authors.txt | ||
| stacks-docs.factor | ||
| stacks-tests.factor | ||
| stacks.factor | ||
| summary.txt | ||