Corrected spelling and grammar mistakes

src/starkware/cairo/common/cairo_keccak/keccak.cairo

@@ -1,4 +1,4 @@
-// This module provides a set of functions to compute the (Ethereuem compatible) keccak hash
+// This module provides a set of functions to compute the (Ethereum compatible) keccak hash
 // function.
 //
 // In order to use the functions that get the ``keccak_ptr`` implicit argument

src/starkware/cairo/common/find_element.cairo

@@ -10,7 +10,7 @@ const FIND_ELEMENT_RANGE_CHECK_USAGE = 2;
 
 // Finds an element in the array whose first field is key and returns a pointer
 // to this element.
-// Since cairo is nondeterministic this is an O(1) operation.
+// Since Cairo is nondeterministic this is an O(1) operation.
 // Note however that if the array has multiple elements with said key the function may return any
 // of those elements.
 //

src/starkware/cairo/common/math.cairo

@@ -237,7 +237,7 @@ func assert_lt_felt{range_check_ptr}(a, b) {
 }
 
 // Returns the absolute value of value.
-// Prover asumption: -rc_bound < value < rc_bound.
+// Prover assumption: -rc_bound < value < rc_bound.
 @known_ap_change
 func abs_value{range_check_ptr}(value) -> felt {
     tempvar is_positive: felt;
@@ -260,7 +260,7 @@ func abs_value{range_check_ptr}(value) -> felt {
 }
 
 // Returns the sign of value: -1, 0 or 1.
-// Prover asumption: -rc_bound < value < rc_bound.
+// Prover assumption: -rc_bound < value < rc_bound.
 @known_ap_change
 func sign{range_check_ptr}(value) -> felt {
     if (value == 0) {

src/starkware/cairo/common/patricia_utils.cairo

@@ -2,7 +2,7 @@
 const MAX_LENGTH = 251;
 
 // A struct of globals that are passed throughout the algorithm.
-struct ParticiaGlobals {
+struct PatriciaGlobals {
     // An array of size MAX_LENGTH, where pow2[i] = 2**i.
     pow2: felt*,
     // Offset of the relevant value field in DictAccess.