skos:altLabel | - K. Popper
- K. R. Popper
- Karl Popper's
- Karl Popper's philosophy of science
- Karl Popper’s
- Karl R Popper
- Karl R. Popper
- Karl Raimund Popper
- Karl_Popper#Criticism
- Popper
- Popper falsifiable
- Popper's
- Popper, K.
- Popper, Karl
- Popper, Karl R.
- Popper, Karl. R.
- Popper-falsifiable
- Popperian
- Sir Karl
- Sir Karl Popper
- Sir Karl Raimund Popper
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