21. His improvisations, with their easy and logical structure , allow even the uninitiated to follow what he does. 22. This addition to the operating system in no way changed the logical structure of the file system. 23. The saga remains widely read today and is appreciated for its logical structure , plausibility, and vivid characters. 24. Screen readers and braille devices have fewer problems with tableless designs because they follow a logical structure . 25. This process uses logical structures , partial memories, narratives or clues in order to retrieve the desired memory. 26. The logical structure one would follow to result at USMC would be : Society / Technology ? 27. An argument that is formally fallacious is rendered invalid due to a flaw in its logical structure . 28. However the logical structure remains unimplemented. 29. This functionality depends on the quality of the software but also on a logical structure of the text. 30. Representing history propositions by projectors on the history Hilbert space naturally encodes the logical structure of history propositions.