1. Logically valid
   "a reasoned argument";
   - sound, well-grounded

1. Think logically
   "The children must learn to reason"
    
2. Decide by reasoning; draw or come to a conclusion
   "We reasoned that it was cheaper to rent than to buy a house"; "They reasoned out a solution to the problem";
   - reason out, conclude
    
3. Present reasons and arguments
   "The lawyer reasoned convincingly for her client's innocence";
   - argue

See also: valid

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

Encyclopedia: Reasoned