Question: Are both Christopher Amott and Stephen Malkmus guitarists?

Context paragraphs:
Michael Amott: Michael Amott (born 28 July 1969) is a Swedish guitarist, songwriter, founding member of the bands Arch Enemy, Spiritual Beggars, and Carnage, as well as a former member of the grindcore band Carcass.  He is the older brother of Christopher Amott.  Some major influences in his music have been Tony Iommi, Michael Schenker, Uli Jon Roth and Dave Mustaine.

Christopher Amott: Christopher Amott (born 23 November 1977) is a Swedish guitarist and vocalist, younger brother of Michael Amott and founding member of the Swedish metal bands Arch Enemy and Armageddon.

War Eternal: War Eternal is the ninth studio album by Swedish melodic death metal band Arch Enemy, which was released on June 9, 2014 by Century Media.  It is the first Arch Enemy album in 13 years since Wages of Sin to feature a new line-up; Alissa White-Gluz took over on vocals after former long-time vocalist Angela Gossow stepped down from vocal duties to be the band's business manager.  Additionally, ex-Arsis guitarist Nick Cordle replaced Christopher Amott in 2012.  Cordle ultimately left the band just before their European tour and was replaced by former Nevermore Guitarist Jeff Loomis

Doomsday Machine (album): Doomsday Machine is the sixth studio album by Swedish death metal band Arch Enemy, produced by Rickard Bengtsson and mixed by Andy Sneap.  It is the third album to feature the vocals of Angela Gossow.  The album had some commercial success reaching number 87 on the "Billboard" 200 selling 12,000 copies.  Christopher Amott left the band shortly after recording the album in July 2005 but rejoined 2 years later for the songwriting sessions for "Rise of the Tyrant".

Stephen Malkmus (album): Stephen Malkmus is the debut album by Stephen Malkmus, released on February 13, 2001 by Matador Records.  Malkmus had planned to create the record by himself, or through a smaller, local label, but eventually accepted the offer Matador asked, and he released it.  Pre-release promotional CDs of the album exist under the working titles "Jicks" and "Swedish Reggae".  Malkmus intended to release the album as The Jicks, but Matador insisted that the album be released under his own name.  The album peaked at #124 in the US and #49 in the UK.

Crossing the Rubicon (Armageddon album): Crossing the Rubicon was an album by the Swedish melodic death metal band Armageddon, released in Europe on the now defunct W.A.R. records, and in Japan on Toy's Factory records in 1997.  The album features Christopher Amott of Arch Enemy, as well as former Arch Enemy members Peter Wildoer and Martin Bengtsson.  The album was only released in Japan, briefly in Europe, and is extremely hard to find.

Stephen Malkmus: Stephen Joseph Malkmus (born May 30, 1966) is an American musician best known as the lead singer and guitarist of the indie rock band Pavement.  He currently performs with Stephen Malkmus and the Jicks.

Anthems of Rebellion: Anthems of Rebellion is the fifth studio album by Swedish melodic death metal band Arch Enemy.  This was the first Arch Enemy album to feature clean vocals.  The clean vocals were sung by Christopher Amott on "End of the Line" and "Dehumanization".

Stephen Malkmus and the Jicks: Stephen Malkmus and the Jicks is a rock band consisting of Stephen Malkmus, Mike Clark, Joanna Bolme, and Jake Morris.  Malkmus was the main singer and songwriter behind the influential 1990s indie rock band Pavement.

Mirror Traffic: Mirror Traffic is an album by Stephen Malkmus and the Jicks, released on August 23, 2011 by Matador Records.  It is the first collaboration between Stephen Malkmus and producer Beck and also the last album to feature drummer Janet Weiss, who moved on to become a member of Wild Flag.  As of November 2013, the album has sold 30,000 copies in the U.S. according to Nielsen SoundScan.

Supporting paragraphs: Christopher Amott Stephen Malkmus
Answer: yes