Verifiable synthetic a priori claims

1) We have a conceptual scheme -- Synthetic as it gives information on the human mind and a priori because it is vital for experience.

2 and 3) Objects we experience are located in a place and time -- Synthetic as it gives information about objects and a priori because without knowing this, we can't experience them. <-- REALLY?

My view:

• Can't prove that we have a CS.
• We can experience objects without knowing they exist because this is how babies gain knowledge of substance.