Je was op zoek naar: proof (Bulgaars - Engels)

('fire-proof!
('fire-proof!

wait with proof
wait with proof

handbook proof- reader
handbook proof-reader

На английски „proof of principle“.
also known as ‘proof of concept’.

reduce the time to reach clinical proof of concept in immunological, respiratory, neurological and neurodegenerative diseases
reduce the time to reach clinical proof of concept in immunological, respiratory, neurological and neurodegenerative diseases;

"is there any tangible proof that there were irish monks in iceland before the time of the viking settlements?
"is there any tangible proof that there were irish monks in iceland before the time of the viking settlements?

* ernest nagel, james roy newman, douglas r. hofstadter: "gödel's proof", revised edition (2002).
* ernest nagel, james roy newman, douglas hofstadter, 2002 (1958).