\ql\fs20\fc0 Tarksi's World, developed at Stanford University, teaches first-order logic. Students construct worlds made of blocks of different sizes and shapes. The students then write sentences of first-order logic to describe the worlds. The program tests the truth values of the sentences and leads students through the evaluation of the sentences.\
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\pard\tx1080\tx7840\fs36 NeXT computers, with workstation computational power and the NeXTstep graphical interface, make possible powerful, easy-to-use, courseware tools that teach traditional topics in engaging and new ways.
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\fs28 Test your logic skills: Double-click Tarski's World and write sentences to describe example worlds. Then, create worlds that make the example sentences true!\
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{{\attachment703 hand.tiff
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{{\attachment705 Tarski.app
}
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\pard\tx1080\tx7840 Tarski's World
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For more information, contact: \
\pard\tx1080\tx6120\b John Etchemendy\
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320 Professor of Philosophy\