Truth Tables for Android

The sole purpose of this program is generating, and displaying, truth tables.This free version supports all usual connectives of classical logic, that is negation, conjunction, (inclusive) disjunction, conditonal (material implication), and biconditional (material equivalence), as well as the constants 1 and 0 denoting truth and falsehood, respectively. A cool thing is that, besides the somewhat boring standard notation of logic, you may use Lukasiewicz's stream-lined, shiny Polish notation, too! Isn't that a deal?And it doesn't stop here. If you are the down-to-earth, common-sense kind of person, you will find it reassuring that, by default, the program uses classical, two-valued, logic. But if you are more of the adventurous type, never stopping short of an adventure life may offer, you will be delighted to learn that Truth Tables for Android supports a number of non-classical, multi-valued systems of logic, too. Never enter a river twice, and two negatives don't make an affirmation, so to speak!Version history
2.1: Now you may enter more than one proposition at a time (separated by commas). In this case, the program will show an integrated truth-table for all the propositions.
2.05: optionally suppresses the Android soft keyboard (requested by a user)
2.04: support for older Android versions (from 1.6) plus minor bugfix (when rotating the screen with the settings dialog open, changed settings from this dialog did not get applied)
2.03: more attractive display of the history of entered propositions - purely cosmetical
2.02: adding a history function for propositions (requested by a user)
2.01: adding an additional level of verbosity showing the valuations for complex sub-expressions, but not for atomic sub-expressions (requested by an estimated user)
2.0: Optionally, the truth table shows all intermediate results, too ("detailed truth table"); internal improvements
1.000020101: adding NAND, NOR, and XOR (a long press at the buttons for conjunction, disjunction, and equivalence will enter NAND, NOR, and XOR, respectively)
1.0000201: persistently saving the global settings; a long press on the Delete button clears the whole input field
1.00002: Due to an entry missing from the list of the English string resources, the English version of the application was unable to open the main settings dialog...
1.00001: generating a much more space-saving version of the APK fileKeywords: truth tables truth-tables Wahrheitstafeln Wahrheitstabellen Aussagenlogik Logik