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Turkish
Not quite. There are some EF-S lenses which are designed for crop sensors and won't fit on an EF camera (even if it did, you'd get extreme vignetting). 35mm will be EF mount.
EF-S (crop-sensor) cameras take EF lenses as well as EF-S though (with increased equivalent focal length).
Check whether your dad's lenses are EF or EF-S. Even if it's an EF-S camera he might still be using EF lenses.
Edit: there's also the mirrorless ones, EF-M - body can take EF or EF-S but EF-M lenses won't work with EF and EF-S mounts