2ed77f3b26
This PR introduces the parametric attribute `[grind]` for annotating theorems and definitions. It also replaces `[grind_eq]` with `[grind =]`. For definitions, `[grind]` is equivalent to `[grind =]`. The new attribute supports the following variants: - **`[grind =]`**: Uses the left-hand side of the theorem's conclusion as the pattern for E-matching. - **`[grind =_]`**: Uses the right-hand side of the theorem's conclusion as the pattern for E-matching. - **`[grind _=_]`**: Creates two patterns. One for the left-hand side and one for the right-hand side. - **`[grind →]`**: Searches for (multi-)patterns in the theorem's antecedents, stopping once a usable multi-pattern is found. - **`[grind ←]`**: Searches for (multi-)patterns in the theorem's conclusion, stopping once a usable multi-pattern is found. - **`[grind]`**: Searches for (multi-)patterns in both the theorem's conclusion and antecedents. It starts with the conclusion and stops once a usable multi-pattern is found. The `grind_pattern` command remains available for cases where these attributes do not yield the desired result. |
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