Theorem itgeq1d 46079

Description: Equality theorem for an integral. (Contributed by Glauco Siliprandi, 11-Dec-2019.)

Hypothesis

Ref	Expression
itgeq1d.aeqb	⊢ (𝜑 → 𝐴 = 𝐵)

Assertion

Ref	Expression
itgeq1d	⊢ (𝜑 → ∫𝐴𝐶 d𝑥 = ∫𝐵𝐶 d𝑥)

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵

Allowed substitution hints:   𝜑(𝑥)   𝐶(𝑥)

Proof of Theorem itgeq1d

Step	Hyp	Ref	Expression
1		itgeq1d.aeqb	. 2 ⊢ (𝜑 → 𝐴 = 𝐵)
2		itgeq1 25702	. 2 ⊢ (𝐴 = 𝐵 → ∫𝐴𝐶 d𝑥 = ∫𝐵𝐶 d𝑥)
3	1, 2	syl 17	1 ⊢ (𝜑 → ∫𝐴𝐶 d𝑥 = ∫𝐵𝐶 d𝑥)

Syntax hints:   → wi 4   = wceq 1541  ∫citg 25547

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-ext 2705

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-sb 2068  df-clab 2712  df-cleq 2725  df-clel 2808  df-ral 3049  df-rex 3058  df-rab 3397  df-v 3439  df-sbc 3738  df-csb 3847  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-nul 4283  df-if 4475  df-sn 4576  df-pr 4578  df-op 4582  df-uni 4859  df-br 5094  df-opab 5156  df-mpt 5175  df-xp 5625  df-cnv 5627  df-co 5628  df-dm 5629  df-rn 5630  df-res 5631  df-ima 5632  df-pred 6253  df-iota 6442  df-fv 6494  df-ov 7355  df-oprab 7356  df-mpo 7357  df-frecs 8217  df-wrecs 8248  df-recs 8297  df-rdg 8335  df-seq 13911  df-sum 15596  df-itg 25552

This theorem is referenced by:  itgspltprt  46101  fourierdlem73  46301  fourierdlem81  46309  fourierdlem92  46320  fourierdlem93  46321  fourierdlem103  46331  fourierdlem104  46332  fourierdlem107  46335  fourierdlem109  46337  fourierdlem111  46339