Fix #757 indentation of "\in" #738

Fix #757 indentation of "\in"

Usage Workflow file

9 errors and 3 warnings

failed 1/2 proof-check-correct-stat (0.620074 sec)

failed 1/13 goals-after-auto (0.215931 sec)

failed 2/13 goals-after-comment (0.149629 sec)

failed 3/13 goals-after-error (0.152044 sec)

failed 4/13 goals-after-proof (0.148051 sec)

failed 8/13 goals-reset-qed (0.150501 sec)

failed 11/13 goals-up-to-date-at-error (0.163386 sec)

failed 12/13 goals-updated-after-check-many-steps (0.162739 sec)

failed 13/13 goals-updated-after-search-many-steps (0.166777 sec)

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v2. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Failed to remove 'http.https://github.com/.extraheader' from the git config