README, core, rpc: fix various typos

1 files changed, 3 insertions, 3 deletions

diff --git a/core/block_validator.go b/core/block_validator.go
index f777b9f23..c3f959324 100644
--- a/core/block_validator.go
+++ b/core/block_validator.go
@@ -64,7 +64,7 @@ func NewBlockValidator(config *ChainConfig, blockchain *BlockChain, pow pow.PoW)
 //
 // ValidateBlock also validates and makes sure that any previous state (or present)
 // state that might or might not be present is checked to make sure that fast
-// sync has done it's job proper. This prevents the block validator form accepting
+// sync has done it's job proper. This prevents the block validator from accepting
 // false positives where a header is present but the state is not.
 func (v *BlockValidator) ValidateBlock(block *types.Block) error {
 	if v.bc.HasBlock(block.Hash()) {
@@ -139,7 +139,7 @@ func (v *BlockValidator) ValidateState(block, parent *types.Block, statedb *stat
 // error if any of the included uncle headers were invalid. It returns an error
 // if the validation failed.
 func (v *BlockValidator) VerifyUncles(block, parent *types.Block) error {
-	// validate that there at most 2 uncles included in this block
+	// validate that there are at most 2 uncles included in this block
 	if len(block.Uncles()) > 2 {
 		return ValidationError("Block can only contain maximum 2 uncles (contained %v)", len(block.Uncles()))
 	}
@@ -193,7 +193,7 @@ func (v *BlockValidator) ValidateHeader(header, parent *types.Header, checkPow b
 	if parent == nil {
 		return ParentError(header.ParentHash)
 	}
-	// Short circuit if the header's already known or its parent missing
+	// Short circuit if the header's already known or its parent is missing
 	if v.bc.HasHeader(header.Hash()) {
 		return nil
 	}