Proving Invalidity. Show That the Following Arguments Are Invalid

Q4: Translations. <br>Letting Hxy = "x is heavier

Q5: Translations. <br>Letting Hxy = "x is heavier

Q6: Prove valid<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB100001/.jpg" alt="Prove valid - "

Q7: Symbolizing<br>-Jones will listen to Smith, even though

Q8: Symbolizing<br>-Everyone who loves himself hates someone (or

Q10: Symbolizing<br>-All freshmen date only seniors. (Fx =

Q11: Symbolizing<br>-If every sinner is sinned against by

Q12: Symbolizing<br>-Someone who is a sinner and sins

Q13: Symbolizing<br>-If something is heavy, then anyone who

Q14: Symbolizing<br>-Not all freshmen date every senior.