11 lines
233 B
Text
11 lines
233 B
Text
example (a b c : nat) : a = b → b = 0 → a = 0 ∧ b = a :=
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begin
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intros, constructor,
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focus { subst a
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--^ "command":"info"
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},
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--^ "command":"info"
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assumption,
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--^ "command":"info"
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subst a
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end
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