Credits and deductions

Thanks for the Reply   Since the father is Married, I know that he cannot claim the Eligible Dependant  I am looking for a Dependant Credit of $4,519.  The Eligible Dependant is not the issue!!!  In the child's personal information who is 6 years & 8 months old as of December 31, 2022, there is a statement " You may be eligible to claim the Quebec Tax Credit for Caregivers for "the son"  if needed  change the % claimed for "the father" 100%

Any portion remaining can be claimed by your spouse,

   and that child's Dependant Credit of $4,519 is included in the father's personal tax credit  $16,143 + $4,519 = $20,662.   

Why is that statement not applied to the 7 months old child? and therefore, the Dependant Credit of $4,519 is Not included in the father's Basic personal amount in the non-refundable tax credits?

The father's Basic personal amount should calculate as $16,143 + $4,519 + $4,519 = $25,181

Please tell me why the father's Basic personal tax amount is NOT calculating to the Credit of $25,181???