which symbols are used by them?
"Swastika", "Om" and "Ashtamangala".
Symbols
Jain icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala". 
which of the following is not among the practices of jainism Violence, attachment, sensual pleasures, lie and possessiveness are some of them. and which are the practices? Jains take five main vows: “ahiṃsā”, “satya”, “asteya”, “brahmacharya” and “aparigraha". when did jainism begin? Historians date it to 8th or 7th century BCE. who is the leader? Rishabhanatha what are the beliefs? It is transtheistic and forecasts that the universe evolves without violating the law of substance dualism, auto executed through the middle ground between the principles of parallelism and interactionism. do jains fast? They fast particularly during festivals and it is  practiced according to one's ability. what food do they eat? The practice of non-violence towards all living beings has led to them to follow vegetarian diet. and what are they not allowed to eat? Eggs, root vegetables such as potatoes, onions, and garlic are some of the food avoided.
Their icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala". Swastika, Om, and the Ashtamangala. The swastika, "Om", and the "Ashtamangala".
Jainism Jainism Jainism
Symbols Symbols Symbols
Jain icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala". Jain icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala". In Jainism, "Om" is a condensed reference to the initials "A-A-A-U-M" of the five parameshthis: ""Arihant", "Ashiri", "Acharya", "Upajjhaya", "Muni"", or the five lines of the "Ṇamōkāra" Mantra. The "Ashtamangala" is a set of eight auspicious symbols: in the Digambara tradition, these are Chatra, "Dhvaja", "Kalasha", Fly-whisk, Mirror, Chair, Hand fan and Vessel. In the Śvētāmbar tradition, they are Swastika, "Srivatsa", "Nandavarta", "Vardhmanaka" (food vessel), "Bhadrasana" (seat), "Kalasha" (pot), "Darpan" (mirror) and pair of fish.
 Jain icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala".
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Jainism [SEP] Symbols
Jain icons and arts incorporate symbols such as the swastika, "Om", and the "Ashtamangala". In Jainism, "Om" is a condensed reference to the initials "A-A-A-U-M" of the five parameshthis: ""Arihant", "Ashiri", "Acharya", "Upajjhaya", "Muni"", or the five lines of the "Ṇamōkāra" Mantra. The "Ashtamangala" is a set of eight auspicious symbols: in the Digambara tradition, these are Chatra, "Dhvaja", "Kalasha", Fly-whisk, Mirror, Chair, Hand fan and Vessel. In the Śvētāmbar tradition, they are Swastika, "Srivatsa", "Nandavarta", "Vardhmanaka" (food vessel), "Bhadrasana" (seat), "Kalasha" (pot), "Darpan" (mirror) and pair of fish. The hand with a wheel on the palm symbolizes "ahimsā". The wheel represents the "dharmachakra", which stands for the resolve to halt the "saṃsāra" (wandering) through the relentless pursuit of "ahimsā".