Bread baked in an oven which was fired with Wood of a Tree of Idolatry: Pesachim 27a
Ability of Blood to annul other Blood: Pesachim 65b
Whether, in a mixture of two Mitzvah items, one annuls the other: Pesachim 115a
Whether one may not annul a rabbinically prohibited item in a mixture intentionally [Ein Mevatlin Issur l'Chatchilah]: Beitzah 4b
Whether Annulment is ineffective on an item which affects the taste or even a minimal amount: Pesachim 29b Leaven During Pesach: Pesachim 29b-30a Leaven After Pesach: Pesachim 29b-30a
An element with elements of other types [min b'she'eino mino]
Whether Annulment is ineffective on an item which affects the taste or even a minimal amount: Pesachim 29b Leaven During Pesach: Pesachim 29b-30a Leaven After Pesach: Pesachim 29b-30a
An Element which is Significant [davar chashuv]
Items that are sold [only] by count (rather than volume or weight): Beitzah 3b
A design on a garment: Temurah 34a
An egg: Beitzah 3b
Bundles of fenugreek: Beitzah 3b
Nuts of Prach: Beitzah 3b
Pomegranates of Badan: Beitzah 3b
Sealed barrels: Beitzah 3b
Bunches of beets: Beitzah 3b
Cabbage heads: Beitzah 3b
Greek gourds: Beitzah 3b
Homemmade bread: Beitzah 3b
Cakes of pressed figs: Beitzah 3b-4a
An Element which will become permitted if we wait [Davar sheYesh Lo Matirin]
Where Two causes Create an Item, one permissible and one not [Zeh v'Zeh Gorem]
General Rule: Pesachim 26b-27a; Temurah 30b-31a
A fetus produced by prohibited and permitted parents: Temurah 30b-31a
An Old Oven fired with Produce of a Tree's First 3 Years or Grafted/Mixed Species of a Vineyard: Pesachim 26b
Above case, where the oven is then used to bake bread: Pesachim 26b
Where the Prohibited Item was in Coal form: Pesachim 26b
An Old Oven fired with Wood of a Tree of Idolatry: Pesachim 27a
Above case, where the oven is then used to bake bread: Pesachim 27a
Annulling An Item by "Planting/Seeding" it in a Mixture [Zeriah]
For Holy Items/Terumah: Pesachim 34b-35a
Differentiating in the Rule Above, between Holy Items made holy via Words or via placement in a Temple Vessel: Pesachim 34b-35a
Differentiating in the Rule Above, between Holy Items of a lesser or greater Impurity: Pesachim 34b
Regarding Water for Temple Libation: Pesachim 34b