Beraisa: An egg: A safek is forbidden and even if it is mixed in with a thousand others, it does not become battel.
Challenge: Why does a mixture not become battel? You might suggest that an egg is considered too important to become battel.
This is dependent on your reading of a Mishna: If you read it “anything that is counted”, eggs are sometimes sold by count. But if you read it “things that are counted”, eggs are not always sold by count and wouldn’t be considered important enough to not be battel.

If someone has bundles of Tiltan that are kilei hakerem [tiltan is a type of spice which is a plant and is thus forbidden when grown together with grapes], they must be burned [they’re assur b’hana’ah]. If they were mixed in with other bundles and the other bundles were mixed with still more bundles, everything is forbidden [it does not become battel because it is a davar sheb’minyan - something that is counted], this is the opinion of Rabbi Meir.
Chachomim: They become battel at a a ratio of 1/200 [although min haTorah everything is battel in a majority, the Chachomim were more stringent with some things. Terumah is only battel 1/100 and kilei hakerem, 1/200].
This is because Rabbi Meir holds: Things that are counted remain forbidden. The Chachomim hold: Only six things, Rabbi Akiva: Seven things.
These are the six things: Perech nuts, pomegranates from Badon, closed kegs of wine, heads of Tardin, large heads of cabbage and Greek pumpkins. Rabbi Akiva adds: large homemade loaves of bread. These things, some of them are Orlah and ossur forever and some are ossur due to their being kilei hakerem.

We learned about this Mishna: Rabbi Yochanan: Rabbi Meir said “things that are counted”. Rabbi Shimon ben Lakish: Rabbi Meir said “anything that is counted”.Challenge: Our Mishna which states that eggs cannot be battel can work according to Reish Lakish, because eggs are sometimes sold by count. But it cannot work according to Rabbi Yochanan since eggs are not things that are only sold by count. 

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