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Theorem signswmnd 32536
Description: 𝑊 is a monoid structure on {-1, 0, 1} which operation retains the right side, but skips zeroes. This will be used for skipping zeroes when counting sign changes. (Contributed by Thierry Arnoux, 9-Sep-2018.)
Hypotheses
Ref Expression
signsw.p = (𝑎 ∈ {-1, 0, 1}, 𝑏 ∈ {-1, 0, 1} ↦ if(𝑏 = 0, 𝑎, 𝑏))
signsw.w 𝑊 = {⟨(Base‘ndx), {-1, 0, 1}⟩, ⟨(+g‘ndx), ⟩}
Assertion
Ref Expression
signswmnd 𝑊 ∈ Mnd
Distinct variable group:   𝑎,𝑏,
Allowed substitution hints:   𝑊(𝑎,𝑏)

Proof of Theorem signswmnd
Dummy variables 𝑢 𝑒 𝑣 𝑤 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 signsw.p . . . . . 6 = (𝑎 ∈ {-1, 0, 1}, 𝑏 ∈ {-1, 0, 1} ↦ if(𝑏 = 0, 𝑎, 𝑏))
21signspval 32531 . . . . 5 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) → (𝑢 𝑣) = if(𝑣 = 0, 𝑢, 𝑣))
3 ifcl 4504 . . . . 5 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) → if(𝑣 = 0, 𝑢, 𝑣) ∈ {-1, 0, 1})
42, 3eqeltrd 2839 . . . 4 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) → (𝑢 𝑣) ∈ {-1, 0, 1})
51signspval 32531 . . . . . . . . . . . . 13 (((𝑢 𝑣) ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → ((𝑢 𝑣) 𝑤) = if(𝑤 = 0, (𝑢 𝑣), 𝑤))
64, 5stoic3 1779 . . . . . . . . . . . 12 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → ((𝑢 𝑣) 𝑤) = if(𝑤 = 0, (𝑢 𝑣), 𝑤))
7 iftrue 4465 . . . . . . . . . . . 12 (𝑤 = 0 → if(𝑤 = 0, (𝑢 𝑣), 𝑤) = (𝑢 𝑣))
86, 7sylan9eq 2798 . . . . . . . . . . 11 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 𝑣))
98adantr 481 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 𝑣))
1023adant3 1131 . . . . . . . . . . 11 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → (𝑢 𝑣) = if(𝑣 = 0, 𝑢, 𝑣))
1110ad2antrr 723 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → (𝑢 𝑣) = if(𝑣 = 0, 𝑢, 𝑣))
12 iftrue 4465 . . . . . . . . . . 11 (𝑣 = 0 → if(𝑣 = 0, 𝑢, 𝑣) = 𝑢)
1312adantl 482 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → if(𝑣 = 0, 𝑢, 𝑣) = 𝑢)
149, 11, 133eqtrd 2782 . . . . . . . . 9 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = 𝑢)
15 simp1 1135 . . . . . . . . . . . 12 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → 𝑢 ∈ {-1, 0, 1})
161signspval 32531 . . . . . . . . . . . . . 14 ((𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → (𝑣 𝑤) = if(𝑤 = 0, 𝑣, 𝑤))
17163adant1 1129 . . . . . . . . . . . . 13 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → (𝑣 𝑤) = if(𝑤 = 0, 𝑣, 𝑤))
18 simpl2 1191 . . . . . . . . . . . . . 14 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) → 𝑣 ∈ {-1, 0, 1})
19 simpl3 1192 . . . . . . . . . . . . . 14 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → 𝑤 ∈ {-1, 0, 1})
2018, 19ifclda 4494 . . . . . . . . . . . . 13 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → if(𝑤 = 0, 𝑣, 𝑤) ∈ {-1, 0, 1})
2117, 20eqeltrd 2839 . . . . . . . . . . . 12 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → (𝑣 𝑤) ∈ {-1, 0, 1})
221signspval 32531 . . . . . . . . . . . 12 ((𝑢 ∈ {-1, 0, 1} ∧ (𝑣 𝑤) ∈ {-1, 0, 1}) → (𝑢 (𝑣 𝑤)) = if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)))
2315, 21, 22syl2anc 584 . . . . . . . . . . 11 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → (𝑢 (𝑣 𝑤)) = if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)))
2423ad2antrr 723 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → (𝑢 (𝑣 𝑤)) = if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)))
25 iftrue 4465 . . . . . . . . . . . . 13 (𝑤 = 0 → if(𝑤 = 0, 𝑣, 𝑤) = 𝑣)
2617, 25sylan9eq 2798 . . . . . . . . . . . 12 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) → (𝑣 𝑤) = 𝑣)
27 id 22 . . . . . . . . . . . 12 (𝑣 = 0 → 𝑣 = 0)
2826, 27sylan9eq 2798 . . . . . . . . . . 11 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → (𝑣 𝑤) = 0)
2928iftrued 4467 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)) = 𝑢)
3024, 29eqtrd 2778 . . . . . . . . 9 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → (𝑢 (𝑣 𝑤)) = 𝑢)
3114, 30eqtr4d 2781 . . . . . . . 8 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
326ad2antrr 723 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = if(𝑤 = 0, (𝑢 𝑣), 𝑤))
337ad2antlr 724 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → if(𝑤 = 0, (𝑢 𝑣), 𝑤) = (𝑢 𝑣))
3410ad2antrr 723 . . . . . . . . . . 11 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑢 𝑣) = if(𝑣 = 0, 𝑢, 𝑣))
35 iffalse 4468 . . . . . . . . . . . 12 𝑣 = 0 → if(𝑣 = 0, 𝑢, 𝑣) = 𝑣)
3635adantl 482 . . . . . . . . . . 11 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → if(𝑣 = 0, 𝑢, 𝑣) = 𝑣)
3734, 36eqtrd 2778 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑢 𝑣) = 𝑣)
3832, 33, 373eqtrd 2782 . . . . . . . . 9 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = 𝑣)
3923ad2antrr 723 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑢 (𝑣 𝑤)) = if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)))
40 simpr 485 . . . . . . . . . . . 12 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ¬ 𝑣 = 0)
4117ad2antrr 723 . . . . . . . . . . . . . 14 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑣 𝑤) = if(𝑤 = 0, 𝑣, 𝑤))
4225ad2antlr 724 . . . . . . . . . . . . . 14 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → if(𝑤 = 0, 𝑣, 𝑤) = 𝑣)
4341, 42eqtrd 2778 . . . . . . . . . . . . 13 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑣 𝑤) = 𝑣)
4443eqeq1d 2740 . . . . . . . . . . . 12 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ((𝑣 𝑤) = 0 ↔ 𝑣 = 0))
4540, 44mtbird 325 . . . . . . . . . . 11 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ¬ (𝑣 𝑤) = 0)
4645iffalsed 4470 . . . . . . . . . 10 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)) = (𝑣 𝑤))
4739, 46, 433eqtrd 2782 . . . . . . . . 9 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → (𝑢 (𝑣 𝑤)) = 𝑣)
4838, 47eqtr4d 2781 . . . . . . . 8 ((((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) ∧ ¬ 𝑣 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
4931, 48pm2.61dan 810 . . . . . . 7 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ 𝑤 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
50 iffalse 4468 . . . . . . . . 9 𝑤 = 0 → if(𝑤 = 0, (𝑢 𝑣), 𝑤) = 𝑤)
516, 50sylan9eq 2798 . . . . . . . 8 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → ((𝑢 𝑣) 𝑤) = 𝑤)
5223adantr 481 . . . . . . . . 9 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → (𝑢 (𝑣 𝑤)) = if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)))
53 simpr 485 . . . . . . . . . . 11 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → ¬ 𝑤 = 0)
54 iffalse 4468 . . . . . . . . . . . . 13 𝑤 = 0 → if(𝑤 = 0, 𝑣, 𝑤) = 𝑤)
5517, 54sylan9eq 2798 . . . . . . . . . . . 12 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → (𝑣 𝑤) = 𝑤)
5655eqeq1d 2740 . . . . . . . . . . 11 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → ((𝑣 𝑤) = 0 ↔ 𝑤 = 0))
5753, 56mtbird 325 . . . . . . . . . 10 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → ¬ (𝑣 𝑤) = 0)
5857iffalsed 4470 . . . . . . . . 9 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → if((𝑣 𝑤) = 0, 𝑢, (𝑣 𝑤)) = (𝑣 𝑤))
5952, 58, 553eqtrd 2782 . . . . . . . 8 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → (𝑢 (𝑣 𝑤)) = 𝑤)
6051, 59eqtr4d 2781 . . . . . . 7 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) ∧ ¬ 𝑤 = 0) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
6149, 60pm2.61dan 810 . . . . . 6 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1} ∧ 𝑤 ∈ {-1, 0, 1}) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
62613expa 1117 . . . . 5 (((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) ∧ 𝑤 ∈ {-1, 0, 1}) → ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
6362ralrimiva 3103 . . . 4 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) → ∀𝑤 ∈ {-1, 0, 1} ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
644, 63jca 512 . . 3 ((𝑢 ∈ {-1, 0, 1} ∧ 𝑣 ∈ {-1, 0, 1}) → ((𝑢 𝑣) ∈ {-1, 0, 1} ∧ ∀𝑤 ∈ {-1, 0, 1} ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤))))
6564rgen2 3120 . 2 𝑢 ∈ {-1, 0, 1}∀𝑣 ∈ {-1, 0, 1} ((𝑢 𝑣) ∈ {-1, 0, 1} ∧ ∀𝑤 ∈ {-1, 0, 1} ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤)))
66 c0ex 10969 . . . 4 0 ∈ V
6766tpid2 4706 . . 3 0 ∈ {-1, 0, 1}
681signsw0glem 32532 . . 3 𝑢 ∈ {-1, 0, 1} ((0 𝑢) = 𝑢 ∧ (𝑢 0) = 𝑢)
69 oveq1 7282 . . . . . 6 (𝑒 = 0 → (𝑒 𝑢) = (0 𝑢))
7069eqeq1d 2740 . . . . 5 (𝑒 = 0 → ((𝑒 𝑢) = 𝑢 ↔ (0 𝑢) = 𝑢))
7170ovanraleqv 7299 . . . 4 (𝑒 = 0 → (∀𝑢 ∈ {-1, 0, 1} ((𝑒 𝑢) = 𝑢 ∧ (𝑢 𝑒) = 𝑢) ↔ ∀𝑢 ∈ {-1, 0, 1} ((0 𝑢) = 𝑢 ∧ (𝑢 0) = 𝑢)))
7271rspcev 3561 . . 3 ((0 ∈ {-1, 0, 1} ∧ ∀𝑢 ∈ {-1, 0, 1} ((0 𝑢) = 𝑢 ∧ (𝑢 0) = 𝑢)) → ∃𝑒 ∈ {-1, 0, 1}∀𝑢 ∈ {-1, 0, 1} ((𝑒 𝑢) = 𝑢 ∧ (𝑢 𝑒) = 𝑢))
7367, 68, 72mp2an 689 . 2 𝑒 ∈ {-1, 0, 1}∀𝑢 ∈ {-1, 0, 1} ((𝑒 𝑢) = 𝑢 ∧ (𝑢 𝑒) = 𝑢)
74 signsw.w . . . 4 𝑊 = {⟨(Base‘ndx), {-1, 0, 1}⟩, ⟨(+g‘ndx), ⟩}
751, 74signswbase 32533 . . 3 {-1, 0, 1} = (Base‘𝑊)
761, 74signswplusg 32534 . . 3 = (+g𝑊)
7775, 76ismnd 18388 . 2 (𝑊 ∈ Mnd ↔ (∀𝑢 ∈ {-1, 0, 1}∀𝑣 ∈ {-1, 0, 1} ((𝑢 𝑣) ∈ {-1, 0, 1} ∧ ∀𝑤 ∈ {-1, 0, 1} ((𝑢 𝑣) 𝑤) = (𝑢 (𝑣 𝑤))) ∧ ∃𝑒 ∈ {-1, 0, 1}∀𝑢 ∈ {-1, 0, 1} ((𝑒 𝑢) = 𝑢 ∧ (𝑢 𝑒) = 𝑢)))
7865, 73, 77mpbir2an 708 1 𝑊 ∈ Mnd
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wa 396  w3a 1086   = wceq 1539  wcel 2106  wral 3064  wrex 3065  ifcif 4459  {cpr 4563  {ctp 4565  cop 4567  cfv 6433  (class class class)co 7275  cmpo 7277  0cc0 10871  1c1 10872  -cneg 11206  ndxcnx 16894  Basecbs 16912  +gcplusg 16962  Mndcmnd 18385
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588  ax-cnex 10927  ax-resscn 10928  ax-1cn 10929  ax-icn 10930  ax-addcl 10931  ax-addrcl 10932  ax-mulcl 10933  ax-mulrcl 10934  ax-mulcom 10935  ax-addass 10936  ax-mulass 10937  ax-distr 10938  ax-i2m1 10939  ax-1ne0 10940  ax-1rid 10941  ax-rnegex 10942  ax-rrecex 10943  ax-cnre 10944  ax-pre-lttri 10945  ax-pre-lttrn 10946  ax-pre-ltadd 10947  ax-pre-mulgt0 10948
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-nel 3050  df-ral 3069  df-rex 3070  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-tp 4566  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-om 7713  df-1st 7831  df-2nd 7832  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-1o 8297  df-er 8498  df-en 8734  df-dom 8735  df-sdom 8736  df-fin 8737  df-pnf 11011  df-mnf 11012  df-xr 11013  df-ltxr 11014  df-le 11015  df-sub 11207  df-neg 11208  df-nn 11974  df-2 12036  df-n0 12234  df-z 12320  df-uz 12583  df-fz 13240  df-struct 16848  df-slot 16883  df-ndx 16895  df-base 16913  df-plusg 16975  df-mgm 18326  df-sgrp 18375  df-mnd 18386
This theorem is referenced by:  signstcl  32544  signstf  32545  signstf0  32547  signstfvn  32548
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