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| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
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first_infinite_von_neumann_ordinal [2017/05/04 10:36] nikolaj |
first_infinite_von_neumann_ordinal [2020/05/01 12:24] nikolaj |
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| | @#FFBB00: definiendum | @#FFBB00: $ \omega_{\mathcal N}$ | | | @#FFBB00: definiendum | @#FFBB00: $ \omega_{\mathcal N}$ | | ||
| | @#55EE55: postulate | @#55EE55: $ \emptyset\in\omega_{\mathcal N}$ | | | @#55EE55: postulate | @#55EE55: $ \emptyset\in\omega_{\mathcal N}$ | | ||
| - | | @#FFFDDD: for all | @#FFFDDD: $ n\in\omega_{\mathcal N}$ | | + | | @#FFFDDD: for all | @#FFFDDD: $ n. n\in\omega_{\mathcal N}\leftrightarrow$ | |
| | @#55EE55: postulate | @#55EE55: $ n = \emptyset\ \lor\ \exists (k\in\omega_{\mathcal N}).\ n = {\mathrm{succ}}\ k $ | | | @#55EE55: postulate | @#55EE55: $ n = \emptyset\ \lor\ \exists (k\in\omega_{\mathcal N}).\ n = {\mathrm{succ}}\ k $ | | ||
| | @#FFFDDD: for all | @#FFFDDD: $ m\in n $ | | | @#FFFDDD: for all | @#FFFDDD: $ m\in n $ | | ||
