用公章签合同有效吗？-合同法律纠纷法律援助-法律咨询免费平台-国际律师联盟

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问题	用公章签合同有效吗？
释义	法律分析：合同不是盖了公章就有效，合同必须依法成立才有效。法律依据：《中华人民共和国民法典》第一百四十三条具备下列条件的民事法律行为有效：（一）行为人具有相应的民事行为能力；（二）意思表示真实；（三）不违反法律、行政法规的强制性规定，不违背公序良俗。第五百零二条第一款依法成立的合同，自成立时生效，但是法律另有规定或者当事人另有约定的除外
随便看	小区贴小广告犯法么怎样惩罚？小区门上插名片是否违法 -法律知识小区贴小广告犯法吗怎样惩罚？在小区发小广告违法吗? -法律知识小区门上插名片是否违法？没入职就要身份证照片危险吗入职拍身份证照片合法嘛？入职带身份证原件正常吗没入职就要身份证照片危险吗？身份证复印件能不能入职入职时需提供真实身份证，否则违法吗？入职需要身份证正反面吗有风险吗办理入职需要身份证吗入职压身份证违法吗入职需要身份证吗贴传单违法吗 -法律知识贴招嫖广告的人怎么处罚贴广告传单违法么怎样处理贴广告传单违法嘛如何处置地摊营业执照许可证怎么申请自媒体营业执照经营范围？违规贴招工广告会受到怎样的处罚？公司招聘虚假宣传怎么处罚大街上发传单是不是违法行为 -法律知识进小区发传单违法嘛？ controversy over a maritime contract controversy over an economic contract controversy over a purchase-and-sale agreement controversy over a seamen's contract controversy over assignment of luggage of passengers controversy over a technical service contract controversy over a technological development contract controversy over a technology contract controversy over a towage contract controversy over a wrecking contract controversy over bequeath controversy over bequest controversy over bonds controversy over borrowings controversy over breaking-up of a family and allotment of properties controversy over cinematographic contract controversy over commercial instruments controversy over commercial paper controversy over common sales of goods controversy over compensation for environmental damages controversy over contract of close corporation controversy over contract of lease controversy over contract of partnership joint management controversy over contract of pawn controversy over contractual rights for the loan of materials objects

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