Description: Lemma for orthoarguesian law 5OA. (Contributed by NM, 2-May-2000) (New usage is discouraged.)
Ref | Expression | ||
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Hypotheses | 5oalem5.1 | |
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5oalem5.2 | |
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5oalem5.3 | |
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5oalem5.4 | |
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5oalem5.5 | |
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5oalem5.6 | |
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5oalem5.7 | |
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5oalem5.8 | |
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Assertion | 5oalem5 | |