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Description: Hyperplane properties expressed with subspace sum and an atom. TODO: can proof be shortened? Seems long for a simple variation of islshpsm . (Contributed by NM, 11-Jan-2015)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | islshpat.v | ⊢ 𝑉 = ( Base ‘ 𝑊 ) | |
| islshpat.s | ⊢ 𝑆 = ( LSubSp ‘ 𝑊 ) | ||
| islshpat.p | ⊢ ⊕ = ( LSSum ‘ 𝑊 ) | ||
| islshpat.h | ⊢ 𝐻 = ( LSHyp ‘ 𝑊 ) | ||
| islshpat.a | ⊢ 𝐴 = ( LSAtoms ‘ 𝑊 ) | ||
| islshpat.w | ⊢ ( 𝜑 → 𝑊 ∈ LMod ) | ||
| Assertion | islshpat | ⊢ ( 𝜑 → ( 𝑈 ∈ 𝐻 ↔ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | islshpat.v | ⊢ 𝑉 = ( Base ‘ 𝑊 ) | |
| 2 | islshpat.s | ⊢ 𝑆 = ( LSubSp ‘ 𝑊 ) | |
| 3 | islshpat.p | ⊢ ⊕ = ( LSSum ‘ 𝑊 ) | |
| 4 | islshpat.h | ⊢ 𝐻 = ( LSHyp ‘ 𝑊 ) | |
| 5 | islshpat.a | ⊢ 𝐴 = ( LSAtoms ‘ 𝑊 ) | |
| 6 | islshpat.w | ⊢ ( 𝜑 → 𝑊 ∈ LMod ) | |
| 7 | eqid | ⊢ ( LSpan ‘ 𝑊 ) = ( LSpan ‘ 𝑊 ) | |
| 8 | 1 7 2 3 4 6 | islshpsm | ⊢ ( 𝜑 → ( 𝑈 ∈ 𝐻 ↔ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 9 | df-3an | ⊢ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) | |
| 10 | r19.42v | ⊢ ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) | |
| 11 | 9 10 | bitr4i | ⊢ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) |
| 12 | df-rex | ⊢ ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑣 ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) | |
| 13 | simpr | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → 𝑣 = ( 0g ‘ 𝑊 ) ) | |
| 14 | 13 | sneqd | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → { 𝑣 } = { ( 0g ‘ 𝑊 ) } ) |
| 15 | 14 | fveq2d | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) = ( ( LSpan ‘ 𝑊 ) ‘ { ( 0g ‘ 𝑊 ) } ) ) |
| 16 | 6 | ad3antrrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → 𝑊 ∈ LMod ) |
| 17 | eqid | ⊢ ( 0g ‘ 𝑊 ) = ( 0g ‘ 𝑊 ) | |
| 18 | 17 7 | lspsn0 | ⊢ ( 𝑊 ∈ LMod → ( ( LSpan ‘ 𝑊 ) ‘ { ( 0g ‘ 𝑊 ) } ) = { ( 0g ‘ 𝑊 ) } ) |
| 19 | 16 18 | syl | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( ( LSpan ‘ 𝑊 ) ‘ { ( 0g ‘ 𝑊 ) } ) = { ( 0g ‘ 𝑊 ) } ) |
| 20 | 15 19 | eqtrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) = { ( 0g ‘ 𝑊 ) } ) |
| 21 | 20 | oveq2d | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = ( 𝑈 ⊕ { ( 0g ‘ 𝑊 ) } ) ) |
| 22 | simplrl | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → 𝑈 ∈ 𝑆 ) | |
| 23 | 2 | lsssubg | ⊢ ( ( 𝑊 ∈ LMod ∧ 𝑈 ∈ 𝑆 ) → 𝑈 ∈ ( SubGrp ‘ 𝑊 ) ) |
| 24 | 16 22 23 | syl2anc | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → 𝑈 ∈ ( SubGrp ‘ 𝑊 ) ) |
| 25 | 17 3 | lsm01 | ⊢ ( 𝑈 ∈ ( SubGrp ‘ 𝑊 ) → ( 𝑈 ⊕ { ( 0g ‘ 𝑊 ) } ) = 𝑈 ) |
| 26 | 24 25 | syl | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( 𝑈 ⊕ { ( 0g ‘ 𝑊 ) } ) = 𝑈 ) |
| 27 | 21 26 | eqtrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑈 ) |
| 28 | simplrr | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → 𝑈 ≠ 𝑉 ) | |
| 29 | 27 28 | eqnetrd | ⊢ ( ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) ∧ 𝑣 = ( 0g ‘ 𝑊 ) ) → ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ≠ 𝑉 ) |
| 30 | 29 | ex | ⊢ ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) → ( 𝑣 = ( 0g ‘ 𝑊 ) → ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ≠ 𝑉 ) ) |
| 31 | 30 | necon2d | ⊢ ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) → ( ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 → 𝑣 ≠ ( 0g ‘ 𝑊 ) ) ) |
| 32 | 31 | pm4.71rd | ⊢ ( ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) ∧ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ) → ( ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ↔ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 33 | 32 | pm5.32da | ⊢ ( ( 𝜑 ∧ 𝑣 ∈ 𝑉 ) → ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 34 | 33 | pm5.32da | ⊢ ( 𝜑 → ( ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) ) |
| 35 | eldifsn | ⊢ ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ↔ ( 𝑣 ∈ 𝑉 ∧ 𝑣 ≠ ( 0g ‘ 𝑊 ) ) ) | |
| 36 | 35 | anbi1i | ⊢ ( ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( ( 𝑣 ∈ 𝑉 ∧ 𝑣 ≠ ( 0g ‘ 𝑊 ) ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 37 | anass | ⊢ ( ( ( 𝑣 ∈ 𝑉 ∧ 𝑣 ≠ ( 0g ‘ 𝑊 ) ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( 𝑣 ∈ 𝑉 ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) | |
| 38 | an12 | ⊢ ( ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) | |
| 39 | 38 | anbi2i | ⊢ ( ( 𝑣 ∈ 𝑉 ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ↔ ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 40 | 37 39 | bitri | ⊢ ( ( ( 𝑣 ∈ 𝑉 ∧ 𝑣 ≠ ( 0g ‘ 𝑊 ) ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 41 | 36 40 | bitr2i | ⊢ ( ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑣 ≠ ( 0g ‘ 𝑊 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ↔ ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 42 | 34 41 | bitrdi | ⊢ ( 𝜑 → ( ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 43 | 42 | exbidv | ⊢ ( 𝜑 → ( ∃ 𝑣 ( 𝑣 ∈ 𝑉 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ∃ 𝑣 ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 44 | 12 43 | bitrid | ⊢ ( 𝜑 → ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑣 ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 45 | fvex | ⊢ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∈ V | |
| 46 | 45 | rexcom4b | ⊢ ( ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ∧ 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) |
| 47 | df-rex | ⊢ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑣 ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) | |
| 48 | 46 47 | bitr2i | ⊢ ( ∃ 𝑣 ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ∧ 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ) |
| 49 | ancom | ⊢ ( ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ∧ 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ↔ ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) | |
| 50 | 49 | rexbii | ⊢ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ∧ 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 51 | 50 | exbii | ⊢ ( ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ∧ 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ↔ ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 52 | 48 51 | bitri | ⊢ ( ∃ 𝑣 ( 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ↔ ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 53 | 44 52 | bitrdi | ⊢ ( 𝜑 → ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) ) |
| 54 | r19.41v | ⊢ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) | |
| 55 | oveq2 | ⊢ ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) → ( 𝑈 ⊕ 𝑞 ) = ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ) | |
| 56 | 55 | eqeq1d | ⊢ ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) → ( ( 𝑈 ⊕ 𝑞 ) = 𝑉 ↔ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) |
| 57 | 56 | anbi2d | ⊢ ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) → ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 58 | 57 | pm5.32i | ⊢ ( ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 59 | 58 | rexbii | ⊢ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 60 | 54 59 | bitr3i | ⊢ ( ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 61 | 60 | exbii | ⊢ ( ∃ 𝑞 ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ∃ 𝑞 ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) ( 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ) ) |
| 62 | 53 61 | bitr4di | ⊢ ( 𝜑 → ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑞 ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) ) |
| 63 | 1 7 17 5 | islsat | ⊢ ( 𝑊 ∈ LMod → ( 𝑞 ∈ 𝐴 ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ) |
| 64 | 6 63 | syl | ⊢ ( 𝜑 → ( 𝑞 ∈ 𝐴 ↔ ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) ) |
| 65 | 64 | anbi1d | ⊢ ( 𝜑 → ( ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) ) |
| 66 | 65 | exbidv | ⊢ ( 𝜑 → ( ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ∃ 𝑞 ( ∃ 𝑣 ∈ ( 𝑉 ∖ { ( 0g ‘ 𝑊 ) } ) 𝑞 = ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) ) |
| 67 | 62 66 | bitr4d | ⊢ ( 𝜑 → ( ∃ 𝑣 ∈ 𝑉 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) ) |
| 68 | 11 67 | bitrid | ⊢ ( 𝜑 → ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) ) |
| 69 | df-3an | ⊢ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) | |
| 70 | r19.42v | ⊢ ( ∃ 𝑞 ∈ 𝐴 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ↔ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) | |
| 71 | df-rex | ⊢ ( ∃ 𝑞 ∈ 𝐴 ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ↔ ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) | |
| 72 | 70 71 | bitr3i | ⊢ ( ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ↔ ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) |
| 73 | 69 72 | bitr2i | ⊢ ( ∃ 𝑞 ( 𝑞 ∈ 𝐴 ∧ ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ) ∧ ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ↔ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) |
| 74 | 68 73 | bitrdi | ⊢ ( 𝜑 → ( ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑣 ∈ 𝑉 ( 𝑈 ⊕ ( ( LSpan ‘ 𝑊 ) ‘ { 𝑣 } ) ) = 𝑉 ) ↔ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) |
| 75 | 8 74 | bitrd | ⊢ ( 𝜑 → ( 𝑈 ∈ 𝐻 ↔ ( 𝑈 ∈ 𝑆 ∧ 𝑈 ≠ 𝑉 ∧ ∃ 𝑞 ∈ 𝐴 ( 𝑈 ⊕ 𝑞 ) = 𝑉 ) ) ) |