1. Logically valid
   - sound, well-grounded

1. Decide by reasoning; draw or come to a conclusion
   "We reasoned that it was cheaper to rent than to buy a house"
   - reason out, conclude 
2. Present reasons and arguments
   - argue 
3. Think logically
   "The children must learn to reason"

See also: reasoner, reasoning, valid

Type of: cerebrate, cogitate, lay out, present, represent, think

Encyclopedia: Reason

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