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-rw-r--r--help/markfirst_memberof.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/help/markfirst_memberof.md b/help/markfirst_memberof.md
index e57552dc..cfe41c16 100644
--- a/help/markfirst_memberof.md
+++ b/help/markfirst_memberof.md
@@ -2,7 +2,7 @@
# Element Of (`∊`)
-## `∊ 𝕩`: Unique Mask
+## `∊ 𝕩`: Mark Firsts
Mark the first occurrence of each major cell in `𝕩` with a 1, and all other occurrences with a 0.
@@ -16,7 +16,7 @@ Mark the first occurrence of each major cell in `𝕩` with a 1, and all other o
## `𝕨 ∊ 𝕩`: Member Of
-Is each element in `𝕨` a major cell of `𝕩`?
+Is each cell in `𝕨` a major cell of `𝕩`?
⟨1⟩ ∊ ↕9