378b02921d
this is the simplest of the constructions to be ported from C++ to Lean, so I’ll PR this one first. This begins to put each construction into its own file, as it was the case with C++. For validation I developed this in a separate repository at https://github.com/nomeata/lean-constructions/tree/fad715e and checked that all `.recOn` declarations found in Lean and Mathlib are identical (per `==`) to the ones produced by the C code.
35 lines
978 B
Text
35 lines
978 B
Text
set_option pp.mvars false
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/--
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error: failed to synthesize
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OfNat (Sort _) 1
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numerals are polymorphic in Lean, but the numeral `1` cannot be used in a context where the expected type is
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Sort _
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due to the absence of the instance above
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use `set_option diagnostics true` to get diagnostic information
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-/
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#guard_msgs in
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axiom bla : 1
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/--
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error: failed to synthesize
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OfNat (Sort _) 1
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numerals are polymorphic in Lean, but the numeral `1` cannot be used in a context where the expected type is
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Sort _
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due to the absence of the instance above
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use `set_option diagnostics true` to get diagnostic information
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-/
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#guard_msgs in
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structure Foo where
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foo : 1
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/--
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error: failed to synthesize
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OfNat (Sort _) 1
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numerals are polymorphic in Lean, but the numeral `1` cannot be used in a context where the expected type is
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Sort _
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due to the absence of the instance above
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use `set_option diagnostics true` to get diagnostic information
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-/
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#guard_msgs in
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inductive Bla (x : 1) : Type
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