| 1. | Here, promissory estoppel created the cause of action where there was none.
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| 2. | Promissory estoppel or unjust enrichment may be available, but generally are not.
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| 3. | It remains unsettled whether promissory estoppel may arise in pre-contractual relationships.
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| 4. | The doctrine of promissory estoppel may not make the total contract fully enforceable.
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| 5. | The case was the first known instance of the concept of promissory estoppel.
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| 6. | The basis of this proprietary estoppel-as indeed of promissory estoppel-is the interposition of equity.
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| 7. | The Court held that promissory estoppel could not be applied.
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| 8. | The contract price as a point of reference may help determine the promissory estoppel.
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| 9. | Promissory estoppel relates to a form of future conduct.
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| 10. | Lord Scott remarked that proprietary estoppel should be seen as a sub-species of promissory estoppel.
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